Overview
What it is
Facial treatment with 7 ingredients that contains thiamidol
Cool Features
It is fungal acne (malassezia) safe and reef safe
Suited For
It has ingredients that are good for dry skin, scar healing and dark spots
Free From
It doesn't contain any common allergens, fragrances, oils, parabens, silicones or sulfates
Fun facts
Eucerin is from Germany. This product is used in 58 routines created by our community.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Explained
Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives.
The "denat" part just means "denatured"; common denaturants include Denatonium Benzoate, t-butyl alcohol, and Diethyl Phthalate. This step makes the alcohol undrinkable (and lets brand skip taxes related to beverage alcohol).
This ingredient gets a bad rep because it is irritating and drying due to its astringent property. Astringents draw out natural oils in tissue to constrict pores and dry out your skin.
However, alcohol denat. is not all that bad.
Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin.
This also helps other ingredients become better absorbed upon application.
Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged.
Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments.
The rule of thumb is this ingredient will probably not affect your skin much if it is near the end of an ingredients list.
One thing to note:
People with ALDH2 (aldehyde dehydrogenase 2) deficiency may experience skin irritation from continued alcohol use. About 8% of the world's population have this deficiency.
The Cosmetic Ingredient Review Expert Panel has determined denatured alcohols to be safe for use in concentrations between 0.05% and 12% (depending on which denaturant is used).
Also...
This ingredient has antimicrobial and solvent properties.
The antimicrobial property helps preserve products and increase their shelf life. As a solvent, it helps dissolve other ingredients.
Look for formulas that contain glycerin, hyaluronic acid, or panthenol if you want to offset any drying effect.
This ingredient will trip away your skin's natural oils/lipids that help it lock in moisture. This can worsen dryness, trigger eczema flare-ups, and aggravate rosacea.
Be sure to patch test any product with this ingredient if you have dry or sensitive skin, eczema, or rosacea.
Learn more about Alcohol Denat.Ammonium Acryloyldimethyltaurate/Vp Copolymer is a synthetically created polymer. It's used as a film-forming agent and used to thicken the consistency of products.
Think of it as a supportive ingredient that helps your gel-creams feel silky, "cloud cream-like", and spread evenly without being greasy.
The Cosmetic Ingredient Review (CIR) Expert Panel evaluated it (along with 22 other acryloyldimethyltaurate polymers) and concluded it's:
Due to its large molecular size, it sits on the surface of skin rather than penetrating it.
Learn more about Ammonium Acryloyldimethyltaurate/Vp CopolymerWater. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!
Learn more about WaterGlucosylrutin is a plant-derived antioxidant that helps neutralize reactive molecules created by UV exposure and environmental stress.
Clinical studies show its strongest benefits when used alongside broad-spectrum UVA protection. In these studies. blucosylrutin helped reduce sun-induced skin reactions such as polymorphus light eruption (sun induced rashes) and itching.
Compared to rutin, glucosylrutin is more stable and easier to formulate into water-based products (it's water soluble).
Learn more about GlucosylrutinGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinYou probably know this ingredient as Thiamidol. It is often called the "hydroquinone alternative" because of it's pigment-fighting abilities.
This ingredient is patented by Beiersdorf (the owner of Nivea, Eucerin, and La Prairie).
It works by in inhibiting tyrosinase (the enzyme your melanocytes use to produce melanin) so less pigment ends up deposited in your skin.
Here's something interesting:
Most brightening ingredients you've heard of like kojic acid, arbutin, and even hydroquinone were originally tested on mushroom tyrosinase. And it turns out, mushroom tyrosinase works pretty differently from the human kind.
So Beiersdorf screened 50,000 compounds against actual human tyrosinase, and Thiamidol came out as the strongest. It showed to be more potent than hydroquinone or arbutin at blocking the human enzyme.
It's been shown to fade melasma, post-inflammatory hyperpigmentation, and sun spots at 0.1-0.2% twice daily with visible results in about four weeks. One randomized trial even found 0.2% Thiamidol worked just as well as 4% hydroquinone on melasma but with fewer side effects.
This ingredient is generally well-tolerated and minor irritation has been reported very infrequently.
Be sure to also check out Rucinol, another "hydroquinone alternative".
Learn more about Isobutylamido Thiazolyl ResorcinolIsoquercitrin is an antioxidant.
Reviews
Where it's from
Eucerin is a German brand
Often compared with
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about usยท Updated November 5, 2025 • Added by starstellastar_407
