Holika Holika Mechnikov's Probiotics Formula Renewing Serum
- Moisturizing
- Anti-aging
- Evens skin tone
- Anti-blemish
- niacinamide
- adenosine
- betaine
- cetearyl alcohol
- +12 more

Price comparison
Can the product deliver on its promises?
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:
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: cocos nucifera oil, squalane.
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 for anti-blemish
This product might be able to help reduce blemishes and clogged pores because it contains niacinamide.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
HIGH | |||
LOW
|
WIMJ summary for anti-aging
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.
These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: adenosine.
Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.
Ingredient | Effectiveness | Concentration | Irritancy |
---|---|---|---|
HIGH | |||
MEDIUM
|
WIMJ summary for evens skin tone
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: 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 |
How honest is this product?
Promise | Can it deliver? |
---|---|
Moisturizing | |
Anti-aging | |
Evens skin tone | |
Anti-blemish |
Potential irritants

Ingredient | Irritancy | Skin Benefit |
---|---|---|
1,2-hexanediol | ||
olea europaea fruit oil | ||
hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer |
Ingredients by volume
Ingredient | Estimated concentration |
---|---|
Plain old water
| 45% - 55% |
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
| 5.1% - 6.3% |
| 4.1% - 5% |
Show more |
Questions
Skincare resources
Scientific Sources
- Glycerol and the skin: holistic approach to its origin and functions
- Final report of the cosmetic ingredient review expert panel on the safety assessment of Polyisobutene and Hydrogenated Polyisobutene as used in cosmetics
- 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
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- Use of “natural” oils for moisturization: Review of olive, coconut, and sunflower seed oil
- The effect of probiotics on immune regulation, acne, and photoaging
- Comparison of clinical and histological effects between lactobacillus-fermented Chamaecyparis obtusa and tea tree oil for the treatment of acne: an eight-week double-blind randomized controlled split-face study
- Use of Probiotics for Dermal Applications
- Evaluation of anti-wrinkle efficacy of adenosine-containing products using the FOITS technique
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Safety Assessment of Tromethamine as Used in Cosmetics