Tatcha The Dewy Serum
- Moisturizing
- Anti-aging
- Exfoliation
- Evens skin tone
- ascorbyl tetraisopalmitate
- crambe abyssinica seed oil
- dimethicone
- glycerin
- +7 more

Price comparison
Can the product deliver on its promises?
Promise
What does the product description say?WIMJ summary for anti-aging
Effective ingredients missing or their concentration is too low.
Ingredient | Effectiveness | Concentration | Irritancy |
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MEDIUM
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LOW
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Promise
What does the product description say?WIMJ summary for exfoliation
This product does not contain effective exfoliating ingredients. It might be able to deliver physical exfoliation, that is scrub off some of the dead cells on the surface of the skin. We do not recommend physical exfoliation, because it is not uniform (some bits of skin can get exfoliated too much while others not at all). It can also traumatize the skin and aggrevate acne and other skin conditions.
Promise
What does the product description say?WIMJ summary for moisturizing
This product can help improve hydration of the skin with the two types of ingredients.
The first type is called “humectants”:
these ingredients help attract water.
When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from
within deeper layers of the skin. The following ingredients in this product do the job:
glycerin, hydrolyzed collagen.
This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: dimethicone, squalane.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
HIGH | |||
HIGH | |||
HIGH |
WIMJ summary for evens skin tone
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: stearyl glycyrrhetinate.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
MEDIUM
| |||
MEDIUM
|
How honest is this product?
Promise | Can it deliver? |
---|---|
Moisturizing | |
Anti-aging | |
Exfoliation |
Potential irritants

Ingredient | Irritancy | Skin Benefit |
---|---|---|
crambe abyssinica seed oil | ||
stearyl glycyrrhetinate | ||
ascorbyl tetraisopalmitate |
Ingredients by volume
Ingredient | Estimated concentration |
---|---|
| 39% - 59% |
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
| 4.3% - 6.5% |
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
| 3.3% - 5% |
Show more |
Similar products & dupes
Tatcha - The Dewy Serum | Kate Somerville - Kx Active Concentrates Squalane + Hyaluronic Serum | OXYjet - Serum 1 | Hourglass - Equilibrium Biomimetic Skin Active Serum | Formulyst - Anti-Aging Concentrate | Simply Pure - Superdrug Simply Pure Hydrating Night Serum | The INKEY List CA - Q10 Serum | Neocutis - Micro Serum Intensive Anti-Ageing and Tightening Serum | Biossance - Squalane + Vitamin C Dark Spot Serum | Naturium - Niacinamide Serum 12% Plus Zinc 2% | EltaMD - Skin Recovery Serum | |
Price | |||||||||||
WIMJ similarity score | 41% | 40% | 40% | 39% | 39% | 39% | 39% | 38% | 38% | 38% | |
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Irritancy | ![]() IRRITANCY
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Questions
Skincare resources
Scientific Sources
- Glycerol and the skin: holistic approach to its origin and functions
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Assessment of penetration of Ascorbyl Tetraisopalmitate into biological membranes by molecular dynamics
- Stability evaluation of tocopheryl acetate and ascorbyl tetraisopalmitate in isolation and incorporated in cosmetic formulations using thermal analysis
- A new lipophilic pro-vitamin C, tetra-isopalmitoyl ascorbic acid (VC-IP), prevents UV-induced skin pigmentation through its anti-oxidative properties
- New lipophilic pro-vitamin C, tetra-isopalmitoyl ascorbic acid (VC-IP), suppresses senile lentigo through controlling of melanocytes-keratinocytes interaction
- Safety Assessment of Phytosterols as Used in Cosmetics
- Combined effect of sodium chondroitin sulfate and sodium hyaluronate on skin moisturization following single and repeated application
- Vitamin E in dermatology