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Your skin starts losing about 1% of its collagen every year after your mid-20s. That’s not a typo, and it doesn’t wait for you to notice wrinkles first. Add in sun exposure, razor irritation, and the occasional dark spot from an old breakout, and you’ve got a recipe for skin that ages faster than it should.
This is where vitamin C serums for men earn their keep. The right formula fights free radicals, calms post-shave redness, and helps fade uneven tone, all in one bottle. But not every serum on the shelf delivers on that promise.
Some are too harsh for daily shaving routines. Others barely contain enough active ingredient to do anything. Below, you’ll find six standouts worth your money, plus exactly how to pick one that matches your skin type.
Table Of Contents
Key Takeaways
- Your skin loses about 1% of its collagen every year once you hit your mid-20s, so vitamin C’s collagen-boosting power matters more the older you get.
- Look for serums with 10-20% L-ascorbic acid (the strongest, most researched form) if your skin tolerates it, or gentler derivatives like ethyl ascorbic acid if you’re sensitive or shave often.
- Pair your vitamin C with vitamin E and ferulic acid to keep the formula stable, and store it in a cool, dark, airless bottle so it doesn’t oxidize before you get to use it.
- Match the serum to your skin type—lightweight formulas for oily skin, hyaluronic acid and ceramides for dry skin, and fragrance-free options for sensitive or post-shave skin.
6 Best Vitamin C Serums for Men
Not every vitamin C serum is built with your skin in mind, especially if shaving is part of your daily routine. You want something that actually works without wrecking your wallet or your face. Here are six options worth your attention, picked for different skin types and budgets.
If post-shave irritation is your main concern, pairing your serum with an overnight hydration mask can help calm and replenish skin while you sleep.
1. Paulas Choice Vitamin C Serum
If you want the best, start here. Paula’s Choice packs 15% L-ascorbic acid, the strongest and most researched form of vitamin C, into a fragrance-free gel that won’t sting sensitive skin.
Vitamin E and ferulic acid team up to keep that potency stable, while the opaque bottle blocks light so it doesn’t oxidize before you’ve even opened it. It layers fast under moisturizer, no greasy residue, no fuss. Simple, effective, done.
| Best For | Anyone with sensitive or normal skin looking for a potent, research-backed vitamin C serum to brighten dull skin, soften fine lines, and fade dark spots. |
|---|---|
| Active Ingredient | L-ascorbic acid 15% |
| Hydration Booster | Ergothioneine |
| Skin Tone | Brightens & evens tone |
| Texture | Lightweight gel |
| Layering | Under moisturizer/sunscreen |
| Sensitive Skin Suitability | Suitable for sensitive skin |
| Additional Features |
|
- Delivers 15% pure L-ascorbic acid alongside ferulic acid and ergothioneine for stable, boosted antioxidant protection
- Lightweight gel texture absorbs quickly and layers easily under moisturizer and sunscreen
- Gentle enough for all skin types, including sensitive skin
- Low pH (3.1–3.5) may cause irritation if paired with high-pH products or applied too close to the eyes
- Some buyers report packaging problems, like leaks, dents, or caps that are hard to open
- Formula can oxidize from yellow to amber over time and may feel slightly sticky or watery on application
2. CeraVe Vitamin C Serum with Hyaluronic Acid
Prefer a gentler approach? CeraVe brings 10% L-ascorbic acid paired with three ceramides and hyaluronic acid, so you get brightening without stripping your skin’s barrier.
The gel texture spreads easily and won’t clog pores, which matters if you’re prone to breakouts. It’s fragrance-free and allergy-tested too. Not as potent as Paula’s Choice, but that’s the point, it’s built for daily use without irritation. A solid pick if your skin leans dry or reactive.
| Best For | People with dry, sensitive, or reactive skin who want the brightening benefits of vitamin C without the irritation that stronger formulas can cause. |
|---|---|
| Active Ingredient | L-ascorbic acid 10% |
| Hydration Booster | Hyaluronic acid |
| Skin Tone | Brightens & evens tone |
| Texture | Lightweight gel |
| Layering | Under moisturizer/sunscreen |
| Sensitive Skin Suitability | Well-tolerated by sensitive skin |
| Additional Features |
|
- Combines 10% L-ascorbic acid with ceramides and hyaluronic acid to brighten skin while supporting the skin barrier
- Lightweight, fragrance-free gel formula that’s non-comedogenic and allergy-tested
- Well-tolerated by sensitive, dry, oily, and acne-prone skin types for daily use
- Less potent than stronger vitamin C formulas, so results take longer to appear
- May cause temporary dryness, requiring a follow-up moisturizer
- Small 1 oz size means it may need frequent repurchasing
3. TruSkin Brightening Vitamin C Serum
If your skin tolerates CeraVe fine but you want more brightening punch, TruSkin’s 20% vitamin C (L-ascorbic acid) delivers that without wrecking your wallet.
It’s blended with vitamin E, hyaluronic acid, and MSM for elasticity and glow. Fragrance-free and non-comedogenic, so oily or acne-prone skin won’t riot.
The dark glass bottle protects potency, and a few drops each morning targets dullness across cheeks and forehead. Solid middle ground: stronger than CeraVe, gentler than most 20% options.
| Best For | This serum is best for anyone dealing with uneven skin tone and dark spots who wants a gentle, everyday brightening boost without harsh additives. |
|---|---|
| Active Ingredient | Sodium ascorbyl phosphate |
| Hydration Booster | Hyaluronic acid |
| Skin Tone | Improves dark spots |
| Texture | Serum |
| Layering | Daily use |
| Sensitive Skin Suitability | Requires patch test |
| Additional Features |
|
- Formulated with stable Vitamin C alongside Hyaluronic Acid, Vitamin E, Aloe Vera, and Jojoba Oil for hydration and skin barrier support
- Free from parabens and dyes, and it’s cruelty-free and made in the USA
- Versatile enough for daily use on the face, neck, hands, knees, and feet
- Requires a 24-hour patch test before regular use to check for skin compatibility
- Some users may notice mild tightening or tingling upon application
- Results build gradually with consistent use, so it’s not a fix for immediate or dramatic changes
4. Olehenriksen Vitamin C Dark Spot Serum
Ole Henriksen takes a different approach with 15% ethyl ascorbic acid, a gentler vitamin C derivative that’s less likely to sting sensitive skin. Banana powder gives it an instant brightening tint, kind of like a filter for your face.
Hyaluronic acid keeps things hydrated without feeling greasy, and the airless pump protects potency. If dark spots from old breakouts or sun exposure bother you most, this one earns its keep.
| Best For | People dealing with dark spots from old breakouts or sun exposure who want a gentle vitamin C option that also hydrates without feeling greasy. |
|---|---|
| Active Ingredient | Vitamin C 15% |
| Hydration Booster | Hyaluronic acid |
| Skin Tone | Reduces dark spots |
| Texture | Lightweight serum |
| Layering | Daily morning use |
| Sensitive Skin Suitability | May cause irritation |
| Additional Features |
|
- Uses a gentler vitamin C derivative alongside PHAs and hyaluronic acid, making it suitable for normal, dry, combination, and oily skin
- Lightweight formula absorbs quickly and hydrates without leaving skin feeling greasy
- Helps brighten skin tone and visibly reduce the look of dark spots over time
- May leave a sticky residue or tinted hue behind if it isn’t rubbed in fully
- Some users have reported irritation, rashes, or swelling
- The citrus scent is synthetic and may not appeal to everyone
5. La Roche-Posay Vitamin C Serum
For a two-in-one approach, La Roche-Posay pairs 10% pure vitamin C with salicylic acid, refining pores while it brightens. Neurosensine calms things down, so guys prone to redness after shaving get brightening without the sting.
Just remember to layer on SPF every morning afterward, since pairing this serum with sunscreen is key to locking in the brightening results—see more picks in this guide to top-rated skin brightening serums.
It’s non-comedogenic and lightweight, layering fine under sunscreen. Think of it as vitamin C with a built-in peace treaty for reactive skin. If pore congestion and dullness both bug you, this pump-packaged serum takes care of both without picking a fight with your face.
| Best For | Guys with reactive, shave-irritated skin who want to tackle dullness and clogged pores with a single lightweight, non-comedogenic serum. |
|---|---|
| Active Ingredient | Ascorbic acid |
| Hydration Booster | Hyaluronic acid |
| Skin Tone | Evens skin tone |
| Texture | Serum |
| Layering | Under moisturizer/sunscreen |
| Sensitive Skin Suitability | Designed for sensitive skin |
| Additional Features |
|
- Combines 10% pure vitamin C with salicylic acid to brighten skin tone while refining pores
- Neurosensine helps calm redness and irritation, making it gentle enough for sensitive, post-shave skin
- Lightweight formula absorbs quickly and layers well under moisturizer and sunscreen
- The pump packaging, while convenient, may still allow some air exposure that can affect the vitamin C’s potency over time
- Some users may experience mild tingling upon application, especially those new to vitamin C or salicylic acid
- As with most vitamin C serums, the formula may change color when exposed to air or light over time
6. Vanicream Vitamin C Serum for Sensitive Skin
If your skin reacts to just about everything, this one’s built for you. Vanicream skips the ascorbic acid entirely, using tetrahexyldecyl ascorbate instead, a gentler vitamin C form that brightens without the sting.
No fragrance, no fillers, just ceramides working to rebuild your skin barrier. The airless pump keeps it stable, and the milky texture sinks in fast.
It won’t deliver dramatic results overnight. But for reactive, easily irritated skin, that slow-and-steady glow beats redness any day.
| Best For | People with sensitive, rosacea-prone, or mature skin who want a gentle, gradual brightening boost without irritation. |
|---|---|
| Active Ingredient | THD ascorbate |
| Hydration Booster | Ceramides |
| Skin Tone | Enhances brightness |
| Texture | Milky serum |
| Layering | Under moisturizer/sunscreen |
| Sensitive Skin Suitability | Dermatologist-tested for sensitive skin |
| Additional Features |
|
- Uses gentle THD ascorbate instead of harsh ascorbic acid, so it brightens skin without stinging or redness
- Formulated without fragrance, dyes, parabens, and other common irritants, with ceramides added to support the skin barrier
- Airless pump packaging keeps the formula stable and fresh, and the lightweight texture absorbs quickly without residue
- The airless pump can require extra shaking and pumping to dispense product
- A small number of highly sensitive users report mild redness or breakouts when first starting out
- Brightening results are gradual and subtle, so it’s not a good fit for anyone wanting fast, dramatic pigment correction
Why Men Need Vitamin C Serum
Vitamin C isn’t just a skincare buzzword for women, guys. Your skin takes a beating from shaving, sun, and daily stress, and this one ingredient targets more of that damage than you’d expect. Here’s exactly what it does for you, one benefit at a time.
Collagen and Fine Lines
Your collagen drops 1% yearly after your mid-20s, so by 40 you’re down roughly 24%. That’s why Collagen Synthesis Boost matters for your grooming routine. Research shows this decline is driven by age-related fibroblast decline, which reduces the skin’s natural collagen output over time.
- Fuels prolyl hydroxylase for real collagen production
- Delivers UV Protection Collagen defense
- Pairs with peptides (Peptide Vitamin C Mix)
- Fights sugar-driven glycation stiffness
- Helps genuine Fine Line Prevention
Dark Spots and Uneven Tone
That razor bump from last week? It’s still hanging around as a dark mark, and that’s hyperpigmentation at work.
That razor bump from last week hasn’t vanished, it’s just turned into hyperpigmentation
Vitamin C targets this through tyrosinase inhibition, slowing melanin production before spots deepen. At 10 to 20% concentration, expect visible dark spot fading within 8 weeks. Stick with it past 12 weeks for real skin tone evenness and sunspot prevention.
Antioxidant Skin Protection
Your skin cranks out free radicals just from being alive, then UV and city pollution pile on more. Vitamin C serum neutralizes those unstable molecules before they wreck collagen. It’s water-soluble, so it works differently than vitamin E, donating electrons to calm oxidative stress.
Pairing it with sunscreen creates real UV protection boost, backing up your grooming routine’s defense against daily environmental damage.
Post-shave Redness and Marks
That red flush after a shave? Blame friction, heat, and a rattled skin barrier working overtime.
Vitamin C calms things fast:
- Eases redness and inflammation
- Speeds healing on nicks
- Prevents dark post-shave marks
- Fights ingrown hairs
Pick a fragrance-free formula if you’re sensitive. It’s basically aftershave insurance, minus the sting.
Skin Repair and Hydration
Once the redness fades, the real work starts underneath. Vitamin C serum helps collagen boosting while backing up your skin barrier repair, so healing happens faster and cleaner.
Pair it with hyaluronic acid for serious moisture locking, or look for ceramides in the mix. That’s real ceramide support and hyaluronic benefits working together, not just marketing talk.
How We Evaluated These Serums
Not all vitamin C serums are created equal, and picking a winner takes more than reading a label. We ran each one through a handful of practical checks, from how well it actually works to how it feels on your skin. Here’s exactly what we looked at.
Vitamin C Potency
Not all vitamin C is created equal. We checked whether each serum sits in the 10 to 20 percent sweet spot, since that’s where L-ascorbic acid (the strongest form) actually brightens skin without torching sensitive faces.
pH matters too: anything near 3.0 to 3.5 helps it penetrate. Below 10 percent, you’re playing it safe but losing some punch.
Formula Stability
Getting the percentage right means nothing if the stuff breaks down before you use it. Oxidation prevention starts with vitamin E paired in, boosting antioxidant cooperation. Look for airless pump packaging and light blocking bottles, not clear droppers. Water-free formulas resist degradation, and derivatives like sodium ascorbyl phosphate offer stronger derivative stability. pH balance near 3.0-3.5 rounds out real serum stability.
Skin Type Compatibility
Stability matters, but does it work for your skin? Oily guys should stick to water-based, lightweight formulas under 20%.
Dry skin? Look for hyaluronic acid.
If you’re sensitive, go fragrance-free with minimal extras.
Mature or sun-damaged skin loves ferulic acid pairings.
Shave-prone skin needs gentler derivatives, no alcohol, no fuss.
Texture and Absorption
While ingredients matter, how a serum feels seals the deal. You want fast absorption, ideally under 90 seconds, with a satin finish and non-tacky results.
A lightweight gel texture works best for daily use, especially post-shave. Look for noncomedogenic, fast-absorbing formulas that skip the greasy residue. Quick dry time means you’re out the door faster, coffee in hand.
Price and Overall Value
Twenty bucks or eighty, does it actually work? That’s the real test.
We calculated cost per ml, not just sticker price, since a $45 bottle that lasts four months often beats a $20 dupe you’ll refill twice. Value vs potency matters too: CeraVe delivers solid results for less, while Ole Henriksen justifies its premium with a stronger price-to-performance ratio for long term savings.
Choose Vitamin C by Skin Type
Not every face reacts to vitamin C the same way, and that’s okay. Your skin type basically decides which formula will work with you instead of against you. Here’s how to match the right serum to what you’re actually dealing with.
Oily and Acne-prone Skin
Oily skin produces up to 59% more sebum, so a heavy serum just adds fuel to the fire. Look for a lightweight formulation with 10-15% vitamin C for real oil balance without clogging pores.
- Helps pore clarity and breakout reduction
- Fades old acne scars
- Pairs well with niacinamide or salicylic acid
- Won’t feel greasy
- Aids acne prevention long-term
Dry and Dehydrated Skin
Tight, flaky skin after a shower? That’s dehydration talking, not just dryness. Look for vitamin C serums with hyaluronic acid and ceramides for real barrier repair.
Pair with gentle cleansing and moisture locking moisturizers. These humectant ingredients pull water into skin, giving you a genuine hydration boost while vitamin C still brightens and protects.
Sensitive and Reactive Skin
Redness after a splash of cologne? Your nerves might be overreacting, literally. Sensitive skin has extra nerve endings, so mild triggers cause big flares.
Pick a fragrance-free formula under 10% vitamin C. Look for niacinamide or ceramides to calm cytokine release and support your skin’s microbiome. This dermatologist recommended approach protects your barrier while keeping your grooming routine irritation-free.
Mature and Sun-damaged Skin
Years in the sun leave a mark, and no moisturizer erases it overnight. If your skin feels leathery or shows deep lines, vitamin C targets it on multiple fronts:
- Collagen production for firmer texture
- Hyperpigmentation reduction for age spots
- Antioxidant defense against further UV damage
- Barrier repair for rough, weathered patches
Go with 15-20% L-ascorbic acid paired with vitamin E and ferulic acid for real sun damage repair.
Shaving-prone Irritated Skin
Sun damage builds up over years, but razor irritation shows up daily, and that’s its own battle. Friction, dull blades, and skipped prep all trigger redness.
For Razor Burn Relief and Ingrown Hair Prevention, pick a fragrance-free formula with soothing extras like aloe. Apply post-shave for real Skin Barrier Repair and calmer skin tomorrow.
Compare Vitamin C Forms and Strengths
Not all vitamin C is created equal, and picking the right form matters as much as picking the right serum. Some options work fast but can be harsh, while others go easy on your skin without slacking on results. Here’s what you need to know before choosing your strength.
L-ascorbic Acid Benefits
If you want the top choice, look for L-ascorbic acid on the label. It’s the purest, most researched form of Vitamin C serum, and studies show it can boost collagen up to eightfold in skin cells.
That means real Collagen Boost, fading dark spots, and solid antioxidant protection for your grooming routine, all from one ingredient.
Gentler Vitamin C Derivatives
Sensitive skin? L-ascorbic acid can sting. Try Vitamin C derivatives instead.
Sodium Ascorbyl Phosphate is water-soluble and gentle. Ethyl Ascorbic Acid stings less while still brightening. Fat-soluble Vitamin C like Magnesium Ascorbyl Phosphate penetrates deeply without fuss.
Ascorbyl Glucoside Effects include steady collagen support. Pick a fragrance-free formula and your skin barrier stays happy, no drama required.
Beginner-friendly Concentrations
New to vitamin C? Start at 10 percent, the sweet spot for brightening without excessive irritation. Ultra sensitive skin? Try 5 percent fragrance-free formulas first. Patch test before applying anywhere near your whole face.
Gradual strength increase beats jumping straight to high doses. Your men’s grooming routine deserves stable vitamin C, not a stinging surprise on day one.
High-strength Serum Considerations
Ready to level up? High-strength serums run 15 to 20 percent ascorbic acid, built for faster collagen synthesis and stronger free radical neutralization. That power depends on stabilizer balance: vitamin E and ferulic acid boost oxidation resistance and keep the pH balanced serum potent. Expect deeper penetration depth and richer texture.
Daily frequency works for tolerant skin, but watch your skin barrier impact closely.
Signs of Skin Irritation
If your face starts protesting, pay attention. Redness and itching show up first, often within minutes on freshly shaved skin. Burning or tightness means you’ve pushed too far. Puffiness, bumps, or a rash signal it’s time to stop, switch to a fragrance-free formula, and skip parabens. Postshave irritation calls for gentler percentages.
Ingredients and Packaging That Matter
Picking a serum isn’t just about the vitamin C percentage on the label. What surrounds that active ingredient, and what bottle it’s sitting in, can make or break how well it actually works on your skin. Here’s what to check for before you buy.
Vitamin E and Ferulic Acid
Two ingredients make a vitamin C serum actually work: vitamin E and ferulic acid. This trio boosts UV protection, fights oxidation, and keeps the formula stable longer.
- Improves antioxidant durability
- Slows vitamin C breakdown
- Boosts photoprotection
- Helps skin barrier
- Extends shelf life
Together they’re a true antioxidant mix, not just marketing hype.
Hyaluronic Acid and Ceramides
Water is the cheapest anti-aging trick out there, and hyaluronic acid delivers it in bulk, holding up to 1000 times its weight. Paired with ceramides, you get real skin barrier support, cutting water loss by half on irritated skin.
| Ingredient | Main Job |
|---|---|
| HA | HA plumping action |
| Ceramides | Ceramide lipid replenishment |
| Combo | Hydration combined effect |
| Result | Moisture retention boost |
Fragrance-free Formulas
Unscented" isn’t the same as fragrance-free, and that gap can wreck sensitive skin. True fragrance-free formulas skip fragrance, parfum, and masking agents entirely.
Check the label against the EU fragrance allergens list. Real transparency means full preservative disclosure, not vague marketing. If your vitamin C serum burns or reddens post-shave, hidden fragrance is often the culprit in your grooming routine.
Opaque Airless Packaging
Ever wonder why some serums turn orange in weeks while others stay fresh for months? It’s the bottle. Light blocking materials and an airless dispenser create a tight oxygen barrier, so your vitamin C doesn’t oxidize before it hits your skin.
Look for indicator tabs, recyclable mono material builds, and real shelf life extension. Good for oily skin, sensitive skin, and your whole men’s skincare routine.
Texture and Ingredient Quality
Good packaging protects a bad formula for nothing. Texture tells you what’s really inside.
Lightweight, fast-absorbing gels with a non-sticky finish signal stable vitamin C derivatives and real ferulic acid mix, not fillers.
Quick checks:
- Slip without stickiness means quality esters, not wax
- Fast absorption (30-60 seconds) shows good hyaluronic acid balance
- Grittiness signals poor pH tuning
Apply and Store Vitamin C Correctly
Buying the right serum is only half the job. How you apply and store it decides whether it actually works or just sits there losing power. Here’s what you need to get right, step by step.
Morning Skincare Routine Order
If your vitamin C serum keeps pilling under moisturizer, the order’s probably off. Stick to cleanser, toner, serum, moisturizer, sunscreen, thin to thick, always.
| Step | Product |
|---|---|
| 1 | Cleanser |
| 2 | Toner |
| 3 | Vitamin C serum |
| 4 | Moisturizer |
| 5 | Sunscreen (booster) |
Consistency matters more than speed here.
Applying Serum After Shaving
Shaving leaves your skin a little rattled, so treat it gently. Cleanse, pat dry, then use a pea-sized amount, pressing rather than rubbing.
- Focus on bump-prone zones first
- Press, don’t drag, across skin
- Skip fragranced formulas post-shave
- Seal with a lightweight moisturizer
This calms postshave irritation without overwhelming already-sensitive skin.
Patch Testing Before Use
Fresh razor nicks mean fresh skin, so before you slather that new serum everywhere, run a patch test first. Apply a dab to your inner arm, wait 48 hours undisturbed, then check for redness.
Choose fragrance-free formulas, especially with sensitive skin. No reaction? You’re clear for safe product introduction into your routine.
Proper Storage Conditions
Where you keep your serum matters as much as what’s in it. Aim for temperature control between 2°C and 8°C, think fridge door, not bathroom shelf. Steam and humidity wreck moisture management, so skip that windowsill too.
Light protection means dark glass over a clear glass dropper. An airless dispenser limits air exposure, slowing oxidation and stretching your serum’s shelf life.
Recognizing Serum Oxidation
If your serum turns yellow or brown, that’s oxidized vitamin C talking. Watch for color shift within weeks of opening.
A sour smell or thickened, sticky texture are red flags too. Both mean lost potency.
Bright light speeds this along, so sealed packaging protects stability. Track shelf life and toss anything questionable.
Frequently Asked Questions (FAQs)
Is vitamin C serum safe with retinol at night?
Mixing potent actives after dark can stir up trouble. Yes, but go slow: start with a lower retinol strength, add a barrier moisturizer, and allow buffering time to protect sensitive skin from irritation.
How long until visible results actually appear?
Patience pays off here. Brightening shows up around 8 to 12 weeks, while hyperpigmentation reduction and collagen production gains take 12 to 16 weeks. Texture improves by week six. Stick with daily use and sunscreen for real, lasting change.
Can vitamin C serum be used around eyes?
Picture Dave dabbing his regular 20% serum under his eyes and wincing. Don’t do that. Stick to 5-10% concentrations in a rollon pen for gentle, fragrance-free application that fights dark circles without irritating sensitive eye skin.
Does vitamin C serum work under sunscreen effectively?
Yes, when layered right. Wait a minute or two for serum absorption timing, then apply sunscreen. You get antioxidant layering plus an UV protection boost, and ferulic acid keeps everything photostable without weakening your SPF.
Conclusion
Picking the right serum is like choosing running shoes: fit matters more than the brand name on the box. Your skin type decides your winner, not hype. Oily skin wants lightweight L-ascorbic acid. Dry skin craves hydration. Sensitive skin needs gentleness first.
Whichever bottle you grab, the best vitamin c serums for men protect your collagen, calm shave irritation, and fade dark spots without drama. Start small, stay consistent, and let your skin do the rest.
- https://evanalexandergrooming.com/blogs/the-den/grooming-boost-vitamin-c-serum-benefits
- https://elvylab.com/blogs/blog-posts/vitamin-c-serum-for-men-brighten-and-protect-your-skin
- https://www.houstonmethodist.org/blog/articles/2024/aug/vitamin-c-serums-are-they-worth-the-hype
- https://www.webmd.com/beauty/ss/slideshow-benefits-of-vitamin-c-for-skin
- https://www.forbes.com/sites/forbes-personal-shopper/article/best-vitamin-c-serum
