COSRX PHA Moisture Renewal Power Cream
Something wrong? Edit here- Moisturizing
- Evens skin tone
- Anti-oxidation
- gluconolactone
- niacinamide
- allantoin
- +11 more
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Formula review
WIMJ summary
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: gluconolactone, niacinamide
Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
HIGH | |||
HIGH |
Promise
What does the product description say?WIMJ summary
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:
allantoin, betaine.
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: beeswax, caprylic/capric triglyceride.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
HIGH | |||
HIGH | |||
HIGH |
WIMJ summary
This product contains antioxidants (gluconolactone) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
MEDIUM
|
Potential irritants

Ingredient | Irritancy | Skin Benefit |
---|---|---|
caprylic/capric triglyceride | ||
gluconolactone | ||
1,2-hexanediol |
Ingredients by volume
Ingredient | Estimated concentration |
---|---|
An emollient. Found to be as effective as a moisturizer for dry skin as mineral oil. Could be comedogenic
| 22% - 33% |
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
| 5.5% - 8.2% |
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
| 4.4% - 6.5% |
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Questions
Skincare resources
Scientific Sources
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- Effect of Olive and Sunflower Seed Oil on the Adult Skin Barrier: Implications for Neonatal Skin Care
- Topically Applied Sunflower Seed Oil Prevents Invasive Bacterial Infections in Preterm Infants in Egypt
- Effect of topically applied lipids on surfactant-irritated skin
- Impact of topical oils on the skin barrier: possible implications for neonatal health in developing countries
- A comparative study of gluconolactone versus benzoyl peroxide in the treatment of acne
- The Polyhydroxy Acid Gluconolactone Protects Against Ultraviolet Radiation in an In Vitro Model of Cutaneous Photoaging
- Applications of hydroxy acids: classification, mechanisms, and photoactivity
- The efficacy of glycolic acid, salicylic acid, gluconolactone, and licochalcone A combined with 0.1% adapalene vs adapalene monotherapy in mild-to-moderate acne vulgaris: a double-blinded within-person comparative study
- A polyhydroxy acid skin care regimen provides antiaging effects comparable to an alpha-hydroxyacid regimen
- The use of polyhydroxy acids (PHAs) in photoaged skin
- Blackwell Publishing, Ltd. Alpha-hydroxyacids and carboxylic acids
- An evaluation of a polyhydroxy acid skin care regimen in combination with azelaic acid 15% gel in rosacea patients
- Aging Skin: Causes, Treatments, and Prevention
- Clinical and cosmeceutical uses of hydroxyacids
- Polyhydroxy Acids (PHAs) Provide Conditioning Effects to Skin Without Increasing Sensitivity to UV Light
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Genetic Architecture of Palm Oil Fatty Acid Composition in Cultivated Oil Palm (Elaeis guineensis Jacq.) Compared to Its Wild Relative E. oleifera (H.B.K) Cortés
- Nutrient composition of Nigerian palm kernel from the dura and tenera varieties of the oil palm (Elaeis guineensis)
- Hyaluronic acid: A key molecule in skin aging