AntioxidantWell-Known
Aรงaรญ
Limited Evidence
AntioxidantBrightensSoothes
Brazil's superfood superstar. Anthocyanin-rich, great antioxidant on paper โ still short on topical clinical data.
Every K-Beauty ingredient worth knowing โ evidence-rated, hype-checked, and actually explained. No marketing fluff.
138 ingredients analyzed
138 ingredients
Brazil's superfood superstar. Anthocyanin-rich, great antioxidant on paper โ still short on topical clinical data.
The peptide you'll find in every "non-prostaglandin" lash serum on the market.
The ingredient that built a thousand peel-off masks and TikTok trends. Does something real (adsorb oil) but never the "detox" miracle the marketing sells.
The first OTC retinoid that matches prescription tretinoin on acne results โ and the one dermatologists reach for first when sensitivity is a concern.
Adenosine is one of the most quietly effective anti-aging ingredients in K-beauty. Approved by Korean regulators as a functional anti-wrinkle ingredient, it's found in an enormous number of products but rarely featured on the front label. It smooths fine lines, promotes wound healing, and has anti-inflammatory properties.
The quiet healer โ hiding in pimple patches, aftersun balms, and nearly every "barrier repair" cream you've ever met.
The world's most overclaimed soothing ingredient โ genuinely helpful for sunburn, mostly filler for everything else.
Hydroquinone's gentler cousin. Alpha arbutin fades spots without the bleaching-paper reputation.
The ayurvedic vitamin C. Works like a mellow L-ascorbic โ brightens without the sting or the pH math.
The OG "liquid gold" oil. Lightweight, polyphenol-rich, feels expensive even when it's not.
Marketed as "Botox in a bottle" โ works via muscle relaxation, not collagen. Evidence is modest but real at proper concentrations.
The well-mannered vitamin C โ stable, gentle, converts to ascorbic acid in skin but slower than L-AA.
The collagen-stimulating half of the cica family โ more active than madecassoside, which is why dermatology clinics reach for TECA over plain centella.
The US-market UVA filter workhorse โ and the one with the photostability problem you should know about.
Azelaic acid is arguably the most underrated active in skincare. It treats acne, fades hyperpigmentation, calms rosacea, and is safe for pregnancy โ a combination of benefits almost no other ingredient can claim. Dermatologists love it; social media mostly ignores it.
Bakuchiol is a plant-derived compound marketed as a 'natural retinol alternative.' One well-designed study showed comparable anti-wrinkle results to 0.5% retinol with less irritation. That's promising, but it's one study โ the evidence is encouraging but not yet deep enough to call it a proven replacement.
The gold standard for inflammatory acne โ and the one active that actually kills bacteria on contact rather than just calming the aftermath.
Hyaluronic acid's less-talked-about best friend โ hydrates harder AND calms like a soothing balm. Sensitive skin's quiet MVP.
The quiet humectant hiding in every K-beauty INCI โ binds water like glycerin but feels lighter.
The "repairs skin while you sleep" ingredient that made Advanced Night Repair the best-selling prestige serum worldwide for 30 years.
The unsung hero in every sensitive-skin formula โ derived from chamomile, genuinely soothes.
The ancient resin Ayurveda and frankincense traditions have used for millennia โ a real anti-inflammatory that quiets reactive skin without the steroid trade-off.
The espresso shot for your eye bags. Honest about what it does โ and doesn't.
Centella asiatica is the ingredient behind the 'cica' trend in K-beauty, and for once the hype is largely justified. With solid clinical evidence for wound healing, anti-inflammatory activity, and collagen synthesis support, it's one of the best-studied botanical ingredients in dermatology.
Ceramides are lipids that make up roughly 50% of the skin barrier. They're not glamorous, rarely trend on social media, and don't promise overnight transformation โ which is exactly why they work. Consistent use demonstrably improves barrier function, moisture retention, and skin resilience.
The apothecary classic. Bisabolol does real soothing work โ this isn't just herbal theater.
The freshwater algae doing detox-skincare's heavy lifting โ packed with chlorophyll, amino acids, and B vitamins, and a key player in clean-beauty brightening lines.
A natural barrier-lipid that your skin needs to function โ and that most moisturizers forget to include.
The antioxidant your mitochondria already make โ until they stop. Topical CoQ10 tops it back up.
Granny's oatmeal bath, scientifically repackaged. Proven eczema relief โ which is why dermatologists actually trust Aveeno.
Copper's loose-salt form โ more bioavailable than copper peptides for general antioxidant work, and the cofactor your skin's superoxide dismutase enzyme needs to do its job.
The wound-healing peptide originally discovered in human plasma โ repairs, stimulates collagen, and has genuine clinical pedigree for post-procedure skin.
Cacao's velvety Amazonian cousin. Softer feel than shea, absorbs water like a sponge, glossy finish.
The controversial solvent that's fine in SPF, useful in toners, and drying in leave-on treatments โ context matters.
The pharma-grade panthenol Europe runs on โ Bepanthen's hero molecule, used after laser, microneedling, retinoid burn, and tattooing because the wound-healing data is genuinely strong.
The single FDA-approved sunless tanning active โ a sugar molecule that reacts with skin's amino acids to create a temporary brown color. The science behind every Bondi Sands and Loving Tan bottle.
Extremophile-derived molecule with exceptional clinical evidence for barrier protection and moisture retention.
The ingredient that won Kรกri Stefรกnsson a genetics Nobel and became the reason BIOEFFECT exists โ a real signalling peptide with a very specific job, priced like a small mortgage.
The mushroom-derived antioxidant your mitochondria have been waiting for โ stable, gentle, and stronger than vitamin C at scavenging hydroxyl radicals.
The trendy newcomer in the vitamin C family โ more stable than L-AA, faster converting than MAP.
2026's most-hyped K-beauty ingredient โ tiny vesicles that ferry signaling molecules between cells, marketed as the next frontier in regenerative skincare.
Despite the name, these are nothing like drying alcohols โ fatty alcohols are emollient and good for dry skin.
The third leg of the vitamin C stool. Makes your antioxidants stronger, stabler, and eight times more UV-protective.
The marine polysaccharide J-beauty has loved for decades โ pulls hydration into skin, calms inflammation, and supports wound healing with serious clinical backing.
The Korean anti-aging ingredient that predates retinol by about a thousand years. Sulwhasoo built a luxury empire on it.
The master antioxidant your liver makes. Topically it's a gentle brightener; orally it's a wellness-industrial complex. K-beauty glow-up in a bottle, if the bottle is stabilised.
The quietly indispensable humectant. Not sexy, just effective โ and in almost every good cream you already own.
Glycolic acid is the smallest AHA molecule, which means it penetrates skin more effectively than its counterparts. It dissolves the bonds between dead skin cells, revealing smoother, brighter skin underneath. Among chemical exfoliants, it has the deepest evidence base.
The antioxidant your grandmother drank. Her skin was probably better for it โ and yours will be too.
The quiet Korean weed that quietly took over. Heartleaf (eo-jil-cho) is the soothing power behind Anua, Abib, and Goodal โ calm without cica, clear without actives.
The UVB backbone of almost every American chemical sunscreen โ and a filter the EU quietly deemed risky enough to restrict.
Hyaluronic acid is a naturally occurring molecule that can hold up to 1,000 times its weight in water โ a claim that's technically true but slightly misleading in skincare context. It's an excellent humectant that draws moisture to the skin, but works best in humid environments or when sealed with an occlusive.
The most effective depigmenting agent ever discovered. Dermatologists prescribe it when nothing else works โ and nothing else works as well. Cycle it, respect it, and wear SPF or it'll rebound.
Retinol's gentler cousin โ binds to retinoid receptors directly, skipping the conversion step that causes retinol's irritation.
The lab-engineered cousin of CoQ10 with the highest antioxidant performance score (EPF) of any topical we've tested โ Elizabeth Arden's Prevage made the molecule famous.
Technically a wax, mimics your skin's sebum, balances oily and dry alike. The oil even oil-prone skin can cheat on.
The gentlest clay in the pharmacy โ absorbs oil without stripping, which is why half the world's masks sit on top of it.
Kojic acid is a potent tyrosinase inhibitor derived from fungi, used extensively in Asian skincare for hyperpigmentation. It's more effective than many natural brighteners but less stable and more irritating than niacinamide โ a trade-off that makes it best suited for targeted use rather than daily application.
The gentlest AHA of the bunch โ exfoliates AND humectants in one, so skin comes out glowy instead of tight. The glycolic for people who can't hack glycolic.
The everyday probiotic ferment behind many "microbiome-friendly" skincare claims.
The next-generation PHA โ same gentle, slow exfoliation as gluconolactone but with extra antioxidant punch. The acid that actually works on rosacea-prone and reactive skin.
The multitasker that calms, brightens, and basically raised half of Eucerin's Anti-Redness line.
The missing fatty acid in most acne-prone skin โ studies show sebum of acneic patients is deficient in linoleic acid.
Madecassoside is one of the key active compounds extracted from Centella asiatica, isolated for more targeted soothing and healing effects. It's the ingredient doing much of the heavy lifting in 'cica' products โ promoting collagen synthesis, reducing inflammation, and accelerating wound healing.
The oily-skin vitamin C โ stable, non-irritating, plays well with niacinamide.
The AHA for people who can't do AHAs. Slow, gentle, works anyway.
The rare botanical with genuine research behind the hype โ medical-grade manuka is FDA-cleared for wound dressings, which tells you the antibacterial claim isn't just marketing.
Topical collagen is a surface moisturizer and a vibe โ not the anti-aging miracle the marketing promises.
The African baobab's cousin oil โ Drunk Elephant made it famous; the formulation is genuinely elegant.
The Greek island resin used since antiquity โ now in modern acne formulations for its antibacterial effect.
The peptide with the best clinical evidence โ stimulates collagen synthesis without the irritation of retinoids.
The preservative the American Contact Dermatitis Society named "Allergen of the Year" in 2013 โ for a reason.
The lightweight anti-pollution oil โ moringa seeds yield an oil that sits light even on combination skin.
The ancient ssuk that Korean grandmothers boiled into baths now lives in every calming essence. Earthier than centella, more potent than green tea.
Ayurveda's anti-acne workhorse. Smells like the monsoon, works on breakouts.
Niacinamide is one of the most versatile and well-researched skincare actives available. It regulates sebum production, strengthens the skin barrier, fades hyperpigmentation, and minimizes pore appearance โ all with minimal irritation risk. If you could only pick one active, this would be a strong contender.
The global UVB workhorse โ and the one Hawaii banned first. Still everywhere, just with a growing asterisk.
The least-controversial chemical UVB filter in your US sunscreen โ quietly doing its job, staying out of headlines.
The photostabilizer doing 90% of the invisible work in your US sunscreen โ and the one with a slightly awkward aging problem.
The chemical filter with the worst PR problem in skincare โ and some of it is earned.
Sederma's six-act peptide โ stimulates collagen I, III, IV, fibronectin, hyaluronic acid, and laminin 5 in one molecule. The grown-up version of generic 'peptide complex.'
Panthenol is vitamin B5's topical form, and it's one of the most reliable barrier-repair ingredients available. It penetrates the skin and converts to pantothenic acid, enhancing hydration, accelerating wound healing, and reducing inflammation. It's boring, effective, and in more products than you'd think.
The preservative family with the worst reputation and the most mixed science.
Derived from salmon DNA, PDRN is the Korean clinic darling going topical. The rare skincare claim with fibroblast data to back it up.
Peptides are short chains of amino acids that can signal skin cells to produce more collagen and elastin. The category is broad and evidence quality varies dramatically โ some peptides (like Matrixyl) have decent clinical data, while many others are supported by little more than in vitro studies and marketing enthusiasm.
The gentler cousin of AHAs โ exfoliates on the surface without the irritation risk.
The gentlest acid in the skincare toolbox โ derived from rice bran, used in P50 lotion, and one of the few acids rosacea-safe users can tolerate.
The ceramide precursor that also kills acne bacteria โ barrier repair with a side of antibacterial.
The "holds 5,000ร its weight in water" flex. Works like hyaluronic acid's richer cousin โ sits on top of skin and locks moisture in.
One of the most vitamin-E-dense plant oils โ extracted from the prickly pear cactus of North Africa.
The resin bees make to seal their hives. On your face it seals barriers, calms redness, and smells faintly of honey. COSRX built a line on it.
The structural supporting molecules in the dermis โ increasingly added to anti-aging formulas as an HA complement.
The undercover hero in La Roche-Posay Cicaplast and dozens of K-beauty calming serums โ a humble succulent with antioxidant numbers that embarrass spinach.
The polyphenol from red wine grapes that makes more sense on your face than in your glass. Caudalie's whole thesis.
The retinoid sweet spot โ stronger than retinol, gentler than tretinoin, and the reason Verso built a Swedish empire.
Retinol is the single most evidence-backed anti-aging ingredient in skincare, full stop. Decades of research confirm it accelerates cell turnover, stimulates collagen production, and treats both acne and photoaging. The catch: it requires patience and a smart introduction strategy.
The weakest retinoid ester you'll find on an INCI list. Requires three conversions to become active โ so it's gentle, but also does very little.
The one celebrity facialists won't shut up about. Natural trans-retinoic acid + linoleic acid โ anti-aging without the prescription.
The protein-rich bee secretion that turns a regular larva into a queen. On skin it's a luxe barrier-nurturing lipid-and-peptide cocktail โ with an asterisk for bee allergies.
Brewer's yeast ferment โ one of the workhorses of fermented skincare.
Salicylic acid is the only commonly used BHA in skincare, and its oil-solubility is what makes it special. It can penetrate into pores to dissolve the sebum and dead cells that cause blackheads and breakouts โ something water-soluble AHAs simply can't do.
The thickest, most comforting hug in skincare. Pure-raw on hands, ankles, elbows; moderated-dose on dry faces.
The villainized inert molecule that's actually fine โ silicones sit on skin, smooth texture, help other actives, and rinse off with normal cleanser.
Snail mucin is one of K-beauty's most iconic โ and most debated โ ingredients. The evidence suggests genuine hydrating and wound-healing properties from its glycoprotein, glycolic acid, and hyaluronic acid content, but the clinical data specifically for skin application is more limited than the hype implies.
The acne-friendly vitamin C โ brightens, reduces post-acne marks, AND has real antibacterial data against C. acnes.
The foaming surfactant that earned its villain status through sheer harshness โ not because it's toxic, but because it genuinely strips skin.
The longevity-skincare obsession of 2024โ25 โ a polyamine that switches on autophagy, the cellular self-cleaning process aging shuts down.
The K-beauty 'at-home microneedling' shortcut โ microscopic spicules from freshwater sponges that physically prick the skin to drive actives deeper. Tingles. Works.
Spilanthol is the bioactive alkaloid extracted from Acmella oleracea (paracress, also known as jambu in Brazil) โ a flowering plant used in Brazilian, Indian, and Southeast Asian traditional medicine. The molecule has demonstrated muscle-relaxant properties when applied topically, leading to its positioning as a 'natural botox alternative' in modern cosmetic formulations. Clinical evidence is emerging but still developing.
Blue-green algae loaded with phycocyanin โ one of the most powerful natural antioxidants we've measured, and a clean-beauty staple for a reason.
Squalane is the hydrogenated (stabilized) form of squalene, a lipid naturally produced by your skin. It's one of the most universally tolerated moisturizing oils available โ lightweight enough for oily skin, nourishing enough for dry skin, and unlikely to cause breakouts in anyone.
The overnight-blemish molecule The Inkey List made famous โ a dicarboxylic acid that targets oil and bacteria without destroying the barrier.
The oldest acne active on the shelf โ smells like a match head, works like a dream on cystic lumps, and quietly runs dermatology clinics worldwide.
A synthetic peptide modeled on the Temple Viper's venom โ relaxes facial muscles, mimicking Botox at a fraction of the cost.
The Pacific Islander scar-healing oil โ genuine clinical evidence for wound healing and post-acne marks.
Aussie bush medicine with a pedigree โ 5% tea tree vs. 5% benzoyl peroxide, dead heat in studies. Spot-treat, don't full-face.
The clinical-pharmaceutical version of centella asiatica โ a standardized extract used in actual prescription scar creams and post-surgical recovery formulations.
The prestige-tier stable vitamin C. Penetrates better than L-ascorbic acid, doesn't oxidise, plays well in oil-phase formulas.
Thiamidol is Beiersdorf's patented tyrosinase inhibitor โ a synthetic small molecule developed by Hamburg-based research labs to selectively block human tyrosinase (the enzyme that produces melanin) more potently than common alternatives like hydroquinone, kojic acid, or arbutin. Eight years of pre-launch research, decade of clinical validation, and a deep patent moat make it one of the most-distinctive brightening ingredients in modern dermo-cosmetics.
The hybrid filter that behaves like both a mineral and a chemical โ and one of the reasons your favorite Korean or French sunscreen leaves such a clean finish.
The modern UV filter EU and Asia have that the US doesn't โ broad-spectrum, photostable, genuinely better than avobenzone.
Zinc's quieter cousin. Great UVB block, weaker on long-UVA โ so it almost always travels in pairs.
Tranexamic acid is a rising star in hyperpigmentation treatment that works through a completely different mechanism than most brighteners. Originally a medication for heavy bleeding, it was found to significantly improve melasma and post-inflammatory hyperpigmentation when applied topically. The clinical evidence is strong and growing.
The "resurrection sugar" that keeps desert plants alive through drought โ and keeps dehydrated skin plumper, longer.
Hyaluronic acid's softer, smaller-molecule sister. A white jelly fungus that's been in Chinese herbal skin rituals for 1,000 years and now every K-beauty lab in Seongsu.
Tretinoin is the gold standard of anti-aging and acne treatment โ and it's not even close. Unlike retinol, which needs to convert twice before it becomes active, tretinoin IS the active form of vitamin A. It's prescription-only for good reason: it works faster and more powerfully than anything over the counter, but it also causes more irritation. The K-beauty approach to tretinoin is all about buffering, hydrating, and supporting the skin barrier while the tret does its job.
The ayurvedic brightener with actual RCTs behind it. Tetrahydrocurcumin = the clean, non-staining cousin.
The split-personality humectant. Low dose = hydrator, high dose = chemical sander for rough patches.
Another modern EU-approved UVA filter the US market doesn't have access to.
Viniferine is Caudalie's patented brightening molecule, extracted from the sap of grape vines (Vitis vinifera) โ distinct from grape seed antioxidants used elsewhere in the brand's catalog. Caudalie's research claims Viniferine is 62 times more effective than vitamin C at inhibiting tyrosinase in vitro. The ingredient is exclusive to Caudalie and anchors the Vinoperfect Radiance Serum, the brand's bestselling product globally.
Vitamin C is one of the most thoroughly researched antioxidants in dermatology. It neutralizes free radicals, inhibits melanin production, and supports collagen synthesis. The challenge is formulation stability โ L-ascorbic acid oxidizes easily, and many products degrade before you finish the bottle.
The antioxidant that makes every other antioxidant work harder. Usually listed near the bottom โ doing a lot of the quiet work.
The expensive fungus from Alba, now in your serum. More story than science, but D'Alba built an entire K-beauty empire on it and the serums are actually well-formulated.
The tree-bark cousin of aspirin โ gentle enough for daily use, strong enough that 'clean beauty' brands keep leaning on it to dodge synthetic BHA.
A German apothecary staple your grandmother swore by. Genuinely astringent โ but only if it isn't half alcohol.
The third zinc โ distinct from zinc PCA (sebum control) and zinc oxide (SPF). This one's the antibacterial fighter, going after the C. acnes bacteria that drive breakouts.
The only mineral filter that covers the full UV range alone. Great on paper, chalky in practice โ unless the formulator earns their paycheck.
The oil-control molecule niacinamide serums add to punch above their weight.
FAQ
The library is built around evidence โ what the studies actually show, not what the marketing claims. A few questions we get often:
Each ingredient has a score reflecting the strength of peer-reviewed research behind its claimed benefit. "Strong" means multiple human RCTs at typical use concentrations. "Mixed" means studies disagree or only in-vitro work exists. "Weak" means hype outpacing the data. We cite the studies on the ingredient page.
Each ingredient page flags pregnancy concerns where they exist (retinoids, salicylic acid โฅ2%, hydroquinone, oxybenzone). For a quick scan of a full INCI list, use /tools/pregnancy-safety โ it cross-references our database against the major pregnancy-avoid lists. Always confirm with your OB/GYN.
Use the skin-type filter ("acne-prone") at the top of the listing. The shortlist most readers settle on: salicylic acid (BHA), niacinamide, azelaic acid, centella asiatica, and adapalene. Each has its own page with strength of evidence, irritation risk, and how to layer it.
Some pairs work; some cancel each other out or irritate. Use /tools/ingredient-matrix for the visual interaction grid, or /layer/X-and-Y for the deep dive on a specific pair. Classic conflicts: retinoids + AHAs/BHAs (same night), Vitamin C + niacinamide (overrated as a conflict โ fine in modern formulas).
We prioritize ingredients with at least some peer-reviewed evidence and meaningful prevalence in K-beauty / global skincare formulas. If you'd like one added, ask via the chat or feedback page โ we add ingredients weekly.