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Ingredient efficacy

Glycerin: does it work, and at what %?

Glycerin is one of the actives we grade on evidence, not marketing. The benefit is real — but only when the dose clears the threshold the research supports. Here's the number, and the products that actually hit it.

3% effective dose · 10% strong

The verdict: The best-studied humectant; draws and holds water in the stratum corneum.

Dryness

How we grade Glycerin

We check the disclosed concentration against the effective threshold from peer-reviewed dermatology literature and regulatory monographs, then weigh the formulation and any product-specific study. The grade is computed from the open rubric — re-run it on any ingredient list and you get the same letter. Also labeled as Glycerol.

The supply of Glycerin we can actually verify

252 products in our index contain Glycerin. 0 disclose a concentration we can confirm reaches an effective dose — that's 0%. The rest list it without a number, so its effect can't be verified at any price.

Products with a disclosed effective dose

We haven't yet graded a product that discloses an effective dose of Glycerin — most brands won't publish the concentration. As brands disclose (or get Verified), graded products will appear here. Browse the full index →

252 more products contain Glycerin without disclosing the dose

These list Glycerin on the label but publish no concentration. We withhold a grade rather than guess — why.

? ACO Kids Active Sun Lotion SPF 50+
— · dose not disclosed
ungraded
? ACO Kids Active Sun Spray SPF 50+
— · dose not disclosed
ungraded
? ACO Sun face cream
— · dose not disclosed
ungraded
? ADVANCED CLINICALS CREEPY SKIN - WRINKLE SMOOTHENING CREAM
— · dose not disclosed
ungraded
? Alba Botanica Sheer Mineral Broad Spectrum SPF 30 Sunscreen Lotion
— · dose not disclosed
ungraded
? Altruist Moisturising Fluid
— · dose not disclosed
ungraded
? Änglamark Änglamark Sun Lotion, SPF15
— · dose not disclosed
ungraded
? Änglamark Kids Water Resistant Sun Spray, SPF50
— · dose not disclosed
ungraded
? Änglamark Sun Face Cream, SPF50
— · dose not disclosed
ungraded
? Änglamark Sun lotion SPF30
— · dose not disclosed
ungraded
? Änglamark Sun Spray, SPF15
— · dose not disclosed
ungraded
? Änglamark Sunlotion roll-on, SPF50
— · dose not disclosed
ungraded
? Änglamark Water Resistant Sun Spray, SPF30
— · dose not disclosed
ungraded
? Apoteket Solcreme ansikte SPF 30
— · dose not disclosed
ungraded
? Apoteket Solcreme ansikte SPF 50
— · dose not disclosed
ungraded
? Apoteket Sollotion högt skydd SPF 30
— · dose not disclosed
ungraded
? apoteket Sollotion SPF 30
— · dose not disclosed
ungraded
? apoteket Solspray SPF 30
— · dose not disclosed
ungraded
? Aquaphor Healing Ointment
$14 · dose not disclosed
ungraded
? ÁR OCEAN Moisturising Face Cream
— · dose not disclosed
ungraded
? Auchan Beauty Eau micellaire
— · dose not disclosed
ungraded
? Aveeno Continuous Protection Sensitive Skin Zinc Oxide Sunscreen SPF 50
— · dose not disclosed
ungraded
? Aveeno ultra-calming sensitive skin foaming cleanser
— · dose not disclosed
ungraded
? Avène Eau thermale SPF 20
— · dose not disclosed
ungraded
? Avène Mat perfect FPS 50+ Fluido con color
— · dose not disclosed
ungraded
? Avene Sunsitive Sunscreen Spray SPF 50+
— · dose not disclosed
ungraded
? Avène Très Haute Protection Spray 50+ SPF
— · dose not disclosed
ungraded
? Avène Trixera
— · dose not disclosed
ungraded
? babyganics Kids SPF 50 Mineral Sunscreen
— · dose not disclosed
ungraded
? Balea (dm Drogerie) Balea Cremedusche Sensitive
— · dose not disclosed
ungraded
? Banana Boat Baby Mineral
— · dose not disclosed
ungraded
? Banana Boat Sport Performance Advanced UVA/UVB Sunscreen
— · dose not disclosed
ungraded
? Bee Beauty Bee Beauty Micellar Makeup Cleansing Water
— · dose not disclosed
ungraded
? Beiersdorf NIVEA SUN Protect & Sensitive Sun Lotion SPF 30
— · dose not disclosed
ungraded
? Beiersdorf Protect & Sensitive 50
— · dose not disclosed
ungraded
? Bergamo Hyaluronic acid essential intensive cream
— · dose not disclosed
ungraded
? BIO:VEGANE SKIN REBALANCE FACE CREAM
— · dose not disclosed
ungraded
? Bioderma Créaline Défensive
— · dose not disclosed
ungraded
? Bioderma Photoderm Max SPF 50+ - Aquafluide
— · dose not disclosed
ungraded
? Bioderma Sébium sensitive
— · dose not disclosed
ungraded
? Bioderma Sensibio H2O Micellar Water
$17 · dose not disclosed
ungraded
? Bionike Defence sun baby & kid 50+
— · dose not disclosed
ungraded
? Bioré Anti-boutons
— · dose not disclosed
ungraded
? Bondi sands Zinc Mineral SPF 50+
— · dose not disclosed
ungraded
? Buchter's Son Butcher's Son Hydro Cream
— · dose not disclosed
ungraded
? Calliston by Christian Artesio Cleansing solution for face and eyes
— · dose not disclosed
ungraded
? caremare ASTAXANTHIN SPIRULINA INSTANT RECOVERY EYE CREAM
— · dose not disclosed
ungraded
? caremare caremare Hyaluron Rhodophyta Hydra Glow Boster Serum
— · dose not disclosed
ungraded
? caremare RHODOPHYTA ALOE VERA SHIELD DAY CREAM
— · dose not disclosed
ungraded
? caremare Rhodophyta Spirulina Hydrasafe Night Cream
— · dose not disclosed
ungraded
? caremare SPIRULINA MALACHIT RECHARGE HYDRA MASK
— · dose not disclosed
ungraded
? Carrefour 25 lingettes démaquillantes fraîcheur
— · dose not disclosed
ungraded
? Carrefour Dissolvant pour les ongles sans acétone
— · dose not disclosed
ungraded
? Celenes By Sweden Celenes By Sweden Cloudberry Cleansing Foaming Gel Dry/Sensitive Skin
— · dose not disclosed
ungraded
? Cerave 3606000537750
— · dose not disclosed
ungraded
? CeraVe Cleanser
— · dose not disclosed
ungraded
? CeraVe Hydrating cream-to-foam cleanser
— · dose not disclosed
ungraded
? Cetaphil Gentle Skin Cleanser
$12 · dose not disclosed
ungraded
? Cetaphil Sun 30
— · dose not disclosed
ungraded
? cien sun Cien sun kid sensitive sun cream 50SPF
— · dose not disclosed
ungraded
? Cien Cien Sun LSF 50 hoch
— · dose not disclosed
ungraded
? Clean & Clear Clean & Clear Blackhead Clearing Daily Scrub
— · dose not disclosed
ungraded
? Clinique Moisture Surge 100H Auto-Replenishing Hydrator
$42 · dose not disclosed
ungraded
? Collagen By Watsons Collagen By Watsons Moisturising Temizleyici
— · dose not disclosed
ungraded
? Cosmica Kids Active Sun Spray, SPF30
— · dose not disclosed
ungraded
? Cosmica Sun Spray
— · dose not disclosed
ungraded
? Cutex Nail Polish Remover Twist & Scrub Sponge
— · dose not disclosed
ungraded
? DAX Hipoalergiczna emulsja do opalania spf 50+
— · dose not disclosed
ungraded
? Dermaself Night Cream Niacinamide Azeloglicina
— · dose not disclosed
ungraded
? Dermaself Night Cream Retinolo
— · dose not disclosed
ungraded
? Derma Sun Lotion Kids, SPF50
— · dose not disclosed
ungraded
? Derma Sun lotion, SPF30
— · dose not disclosed
ungraded
? Diadermine Eau démaquillante
— · dose not disclosed
ungraded
? dm Sun dance
— · dose not disclosed
ungraded
? Doctor Fiterman Sun Protect
— · dose not disclosed
ungraded
? Dot and key Dot and key Watermelon cooling sunscreen
— · dose not disclosed
ungraded
? Dove Dove Deeply Nourishing Moisturising Hand Wash
— · dose not disclosed
ungraded
? Dr Pierre Ricaud Hydra-rides
— · dose not disclosed
ungraded
? Dr. Ceuracle Hyal Reyouth Moist Sun SPF50+ PA++++ moisturizing UV protection face & body
— · dose not disclosed
ungraded
? Dr.Melaxin Dr.Melaxin Hydro Ceramic Serum Infused Essence Sun Cream SPF50+ PA++++
— · dose not disclosed
ungraded
? Eau thermale Avène Trixéra+
— · dose not disclosed
ungraded
? Edgewell Sheer Touch Oil-free Sunscreen Lotion 30 SPF
— · dose not disclosed
ungraded
? Edgewell Sheer Touch Oil-free Sunscreen Lotion SPF 15
— · dose not disclosed
ungraded
? Elmiplant Skin Moisture
— · dose not disclosed
ungraded
? Embryolisse Lait-Crème Concentré
$28 · dose not disclosed
ungraded
? Equate Sunscreen: Broad Spectrum SPF 50 Spray
— · dose not disclosed
ungraded
? Eshumi Eshumi Vitamin Laser Collagen Sunscreen SPF 50+ PA+++
— · dose not disclosed
ungraded
? Essity Demakup Cotton Science Fraicheur
— · dose not disclosed
ungraded
? Etos Cleansing Nourishing Milk
— · dose not disclosed
ungraded
? Etos Uiercrème
— · dose not disclosed
ungraded
? Eucerin hyalluron Filler + 3x effect
— · dose not disclosed
ungraded
? Eucerin Sensitive Protect Body Spray
— · dose not disclosed
ungraded
? Eucerin Sun Sensitive Protect Kids SPF 50+ Spray Corps
— · dose not disclosed
ungraded
? Eucerin Sun spray 50+
— · dose not disclosed
ungraded
? Eximia Eximia Hyalu volume complex 3D
— · dose not disclosed
ungraded
? Eximia Eximia hydra mat
— · dose not disclosed
ungraded
? Facetheory Bakuchiol Firming Daily Moisturiser
— · dose not disclosed
ungraded
? Facetheory Glow-C Cream Cleanser
— · dose not disclosed
ungraded
? Facetheory Peptide Firming Night Cream
— · dose not disclosed
ungraded
? FLORUCCI Makeup removers cleaning cloths
— · dose not disclosed
ungraded
? Garnier 50* Super UV Acide Hyaluronique
— · dose not disclosed
ungraded
? Garnier Agua micelar
— · dose not disclosed
ungraded
? Garnier Enfant sensitive expert + Spf 50+ Spay
— · dose not disclosed
ungraded
? Garnier Micellar Cleansing Water
— · dose not disclosed
ungraded
? Garnier Sensitive expert + Spf 50+
— · dose not disclosed
ungraded
? Hada Labo Tokyo Hada Labo Tokyo Super Moisturizer Sun Lotion SPF50
— · dose not disclosed
ungraded
? Handsan Handcreme Hand & Nail
— · dose not disclosed
ungraded
? Hanskin Hanskin Cleansing Foam & Blackhead 120ml
— · dose not disclosed
ungraded
? Hawaiian Tropic Luminosity protective sun lotion SPF 15
— · dose not disclosed
ungraded
? Hawaiian Tropic Luminosity protective sun lotion SPF 30
— · dose not disclosed
ungraded
? Hawaiian Tropic Luminosity protective sun lotion SPF 50
— · dose not disclosed
ungraded
? Hayejin Rice Bran Oil for Face
— · dose not disclosed
ungraded
? Hej Organic GmbH The Clean Beauty Clay Mask
— · dose not disclosed
ungraded
? Hema Hello Mirror guess my age
— · dose not disclosed
ungraded
? Hema Sensitive night cream
— · dose not disclosed
ungraded
? Hindustan Unilever Limited Glow & LovelyGlow & Lovely Re-New Bright Advanced Multi Vitamin Serum in Cream
— · dose not disclosed
ungraded
? Hyphen sunscreen
— · dose not disclosed
ungraded
? Idraet Idraet thermal new
— · dose not disclosed
ungraded
? Idraet Pro Reti-C Retinol & Vitamin C
— · dose not disclosed
ungraded
? Indy Beauty Arbutin & liquorice glow up moisturizer
— · dose not disclosed
ungraded
? Inell Gelée démaquillante yeux
— · dose not disclosed
ungraded
? ISANA Bodycreme Vitamin E
— · dose not disclosed
ungraded
? Johnson & Johnson Aveeno
— · dose not disclosed
ungraded
? Johnson & Johnson Deep Clean
— · dose not disclosed
ungraded
? Khan El Kaser Face Sunscreen
— · dose not disclosed
ungraded
? Kiehl's Ultra Facial Cream
$38 · dose not disclosed
ungraded
? Kruidvat kruidvat Solait kids sunmilk 50+ very high
— · dose not disclosed
ungraded
? Kruidvat Solait 50+ kids
— · dose not disclosed
ungraded
? L'OCCITANE en provence Mains à Croquer
— · dose not disclosed
ungraded
? L'Oréal Age defender
— · dose not disclosed
ungraded
? L'Oréal Biotherm Anti-wrinkles sun cream
— · dose not disclosed
ungraded
? L’oréal Revitalift filler
— · dose not disclosed
ungraded
? La Roche-Posay Anthelios Dermo-Pediatrics 50+
— · dose not disclosed
ungraded
? La Roche-Posay Anthelios XL 50+ ultra-léger
— · dose not disclosed
ungraded
? La Roche-Posay Effaclar Deep Cleaning Foaming Crem
— · dose not disclosed
ungraded
? La Roche-Posay Nutric Intense Rich In-depth Nutri-Reconstituting Cream
— · dose not disclosed
ungraded
? Labell Eau démaquillante
— · dose not disclosed
ungraded
? Labell Gelée micellaire démaquillante
— · dose not disclosed
ungraded
? Lacura Intensive Hand Cream
— · dose not disclosed
ungraded
? LASCAD Eau nettoyante apaisante - solution micellaire
— · dose not disclosed
ungraded
? Lavozon Apres Lotion
— · dose not disclosed
ungraded
? Léa Nature BB cream texture légère perfecteur de teint - 01 beige nude
— · dose not disclosed
ungraded
? Léa nature Hydra aloe vera
— · dose not disclosed
ungraded
? Lidherma Cell active hidro cream
— · dose not disclosed
ungraded
? Liic Liic Moisturizing cream
— · dose not disclosed
ungraded
? Lirene Dermoprogram Sun protection emulsion
— · dose not disclosed
ungraded
? Loverock face cream
— · dose not disclosed
ungraded
? Mad Hippie Daily protective serum.
— · dose not disclosed
ungraded
? mama bear mama bear face & body cream
— · dose not disclosed
ungraded
? Marcelle Oil-Free Eye-Makeup Remover Pads
— · dose not disclosed
ungraded
? Maruderm Maruderm Rice Radiant Purifying Cleanser
— · dose not disclosed
ungraded
? Melvita Eau extraordinaire Rose
— · dose not disclosed
ungraded
? Mercadona Spray solar
— · dose not disclosed
ungraded
? Mustela No rinse Cleansing Water
— · dose not disclosed
ungraded
? Naturalia Eau micellaire demaquillante
— · dose not disclosed
ungraded
? Nestlé Cetaphil Gentle Skin Cleanser
— · dose not disclosed
ungraded
? Netto Dissolvant pour les ongles
— · dose not disclosed
ungraded
? Netto Eau démaquillante Yeux
— · dose not disclosed
ungraded
? Neutrogena Hydro Boost Aqua-Gel
— · dose not disclosed
ungraded
? Neutrogena Hydro Boost Water Gel Lotion SPF 50
— · dose not disclosed
ungraded
? NIVEA Sun babies & kids sensitive protect 50+
— · dose not disclosed
ungraded
? Nivea Sun kids sensitive protect 5 in 1 SPF50+ lotion
— · dose not disclosed
ungraded
? Nivea Sun protect & moisture SPF 50+
— · dose not disclosed
ungraded
? Nivea Sun Protect & Moisture Travel Size, SPF50
— · dose not disclosed
ungraded
? Nivea Sun Protect & Moisture, SPF15
— · dose not disclosed
ungraded
? Nivea Sun Protect & Moisture, SPF20
— · dose not disclosed
ungraded
? Nivea Sun Protect & Moisture, SPF30
— · dose not disclosed
ungraded
? Nivea Sun UV Face Shine Control SPF 50
— · dose not disclosed
ungraded
? Nivea Baume après-rasage
— · dose not disclosed
ungraded
? Nivea DAILY ESSENTIALS LIGHT MOISTURISING DAY CREAM
— · dose not disclosed
ungraded
? NIVEA kids sensitive protect
— · dose not disclosed
ungraded
? Nivea Kids Sensitive Protect Spray, SPF50
— · dose not disclosed
ungraded
? Nivea Nivea Soft
— · dose not disclosed
ungraded
? NIVEA NIVEA Soothing Face Cleansing Foam
— · dose not disclosed
ungraded
? Nivea Nivea Sun Dry Protect
— · dose not disclosed
ungraded
? Nivea Nivea Sun Protect & Dry Touch SPF50, UVA 4 Stars
— · dose not disclosed
ungraded
? NIVEA NIVEA SUN Protect & Moisture Sun Spray SPF 50+
— · dose not disclosed
ungraded
? NIVEA NIVEA SUN Sensitive Immediate Protect Spray SPF 50+
— · dose not disclosed
ungraded
? Nivea protect & dry touch sport
— · dose not disclosed
ungraded
? Nivea Protect & dry touch spray, SPF30
— · dose not disclosed
ungraded
? Nivea Protect & Moisture solkrem, SPF30
— · dose not disclosed
ungraded
? Nivea Protect & Moisture Spray, SPF15
— · dose not disclosed
ungraded
? NIVEA Q10 Anti-Falten POWER
— · dose not disclosed
ungraded
? Nivea Sensitive Immediate Peotect, SPF30
— · dose not disclosed
ungraded
? Nivea Sensitive Immediate Protect+, SPF30
— · dose not disclosed
ungraded
? Nivea Spray transparent protection invisible 30 haute
— · dose not disclosed
ungraded
? Nivea Sun
— · dose not disclosed
ungraded
? Nivea Sun protect & bronze, spray, SPF20
— · dose not disclosed
ungraded
? Nivea Sun protect & refresh
— · dose not disclosed
ungraded
? OLAY OLAY beauty fluid
— · dose not disclosed
ungraded
? Ole Henriksen Banana Bright Vitamin C Serum
— · dose not disclosed
ungraded
? OleHenriksen Banana Bright+ Instant Glow Moisturizer
— · dose not disclosed
ungraded
? OMBIA SUN Sun Spray Classic
— · dose not disclosed
ungraded
? Ombra sun Sun Milk 20 Mittel
— · dose not disclosed
ungraded
? OMG Bright Booster UV Barrier Sunscreen SPF 50 PA++++
— · dose not disclosed
ungraded
? Omum Ma Jolie Peau
— · dose not disclosed
ungraded
? Palmer’s Cocoa Butter Formula
— · dose not disclosed
ungraded
? Plum Rice water & Niacinamide Hybrid Sunscreen
— · dose not disclosed
ungraded
? Poundland Red Fruits - hand and body lotion
— · dose not disclosed
ungraded
? Pure Harmony Cremegel Aqua mit Hyaluron
— · dose not disclosed
ungraded
? Qiriness Baume Divin
— · dose not disclosed
ungraded
? QV QV intensive cream
— · dose not disclosed
ungraded
? Rema 1000 Solkrem, SPF30
— · dose not disclosed
ungraded
? Rene Furterer Paris Karité Nutri
— · dose not disclosed
ungraded
? RETINOL RETINOL SKIN CREAM
— · dose not disclosed
ungraded
? Rimmel BB cream radiance 9 en 1 SPF 20 - 001 claire
— · dose not disclosed
ungraded
? Rimmel BB cream radiance 9 en 1 SPF 25 - 00? très claire
— · dose not disclosed
ungraded
? Rimmel BB cream radiance 9 en 1 SPF 25 - 002 medium
— · dose not disclosed
ungraded
? rossmann sun Ozon
— · dose not disclosed
ungraded
? Rossmann Sun ozon kids
— · dose not disclosed
ungraded
? Roval Dissolvant pour les ongles
— · dose not disclosed
ungraded
? Sensolar Duo Bronce Factor 50
— · dose not disclosed
ungraded
? Simple Simple Daily Skin Detox Clear Pore Scrub
— · dose not disclosed
ungraded
? Sisley Sisleÿa réducteur rides quotidien
— · dose not disclosed
ungraded
? Skinceuticals SkinCeuticals Advanced Brightening UV Defense Sunscreen SPF 50
— · dose not disclosed
ungraded
? SNAIL WHITE Everyday glow sunscreen
— · dose not disclosed
ungraded
? Some By Mi Some By Mi Retinol Intense Reactivating Serum 50ml
— · dose not disclosed
ungraded
? Summer Fridays ShadeDrops Broad Spectrum SPF 30 Mineral Milk Sunscreen
— · dose not disclosed
ungraded
? Sun Look Protect SF30
— · dose not disclosed
ungraded
? SunMed Spray Solar 50+
— · dose not disclosed
ungraded
? Sunozon Aprèslotion Med
— · dose not disclosed
ungraded
? Supergoop! mineral matte screen
— · dose not disclosed
ungraded
? SVR SVR Spray Sun Secure SPF 50+
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Advanced Repair 11-in-1 Serum With Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Advanced Repair 11-in-1 Serum Without Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Age Defence Men's Serum
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Cellular Night Repair Miracle Without Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Double Stem Cell Repair 11-in-1 Serum With Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Double Stem Cell Repair 11-in-1 Serum Without Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Hydration Pro Serum (24hour Hydration) With Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Hydration Pro Serum (24hour Hydration) Without Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Time Response 11-in-1 Serum With Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Time Response 11-in-1 Serum Without Essential Oil
— · dose not disclosed
ungraded
? Swiss Toniq Geneva Ultra Sensitive
— · dose not disclosed
ungraded
? TandheM Neurocosmetics Active Botanical Eye Contour (15ml)
— · dose not disclosed
ungraded
? Tesco Beauty Nail Polish Remover
— · dose not disclosed
ungraded
? Tesco hand cream
— · dose not disclosed
ungraded
? The Inkey List Starter retinol serum
— · dose not disclosed
ungraded
? The Inkey List Vitamin B, C and E moisturizer
— · dose not disclosed
ungraded
? The Ordinary Natural Moisturizing Factors + HA
$8 · dose not disclosed
ungraded
? Tiger Moon Retinol Night Cream
— · dose not disclosed
ungraded
? Unilever Cuida & Protege Antibacterial
— · dose not disclosed
ungraded
? Unilever Dove Nourishing Body Care Intensiva Piel Extra Seca
— · dose not disclosed
ungraded
? Unilever Pond's Pure Detox Pollution Clear
— · dose not disclosed
ungraded
? Unknown brand Anti-Tage Spezialcreme
— · dose not disclosed
ungraded
? up & up Kids' Sunscreen Lotion
— · dose not disclosed
ungraded
? Uriage Eau micellaire thermale - apaise, démaquille, nettoie
— · dose not disclosed
ungraded
? Vichy Vichy Idéal soleil SPF30
— · dose not disclosed
ungraded
? Weleda Skin Food Original Ultra-Rich Cream
$19 · dose not disclosed
ungraded
? Yves Rocher Pure calmille depuis 1964 since
— · dose not disclosed
ungraded
? Zenova suncare 50 SPF Sunspray
— · dose not disclosed
ungraded
? Ziaja sun lotion for children
— · dose not disclosed
ungraded

Browse all graded products →

Common questions

What concentration of Glycerin is effective?

On Visage Theory's rubric, Glycerin reaches an effective dose at 3% and a strong, research-backed dose at 10%. Below that, the labeled benefit is unlikely no matter how good the marketing is.

Is more Glycerin always better?

Not necessarily — past the effective range you mostly add irritation risk, not benefit. What matters is clearing the threshold in a stable formula, which is exactly what our grade checks.

How do I know a product actually contains an effective dose of Glycerin?

Most brands list the active but hide the concentration. When the dose isn't disclosed we can't confirm efficacy, so we withhold a grade rather than guess. Products that disclose an effective dose are graded and listed below.

Get "Efficacy Grade of the Week"

We deconstruct one viral product a week — the active, the dose, the receipts. Free, and you can't pay us to inflate a grade.