PRODUCT REVIEW
BIOTHERM BLUE RETINOL RESURFACING NIGHT SERUM
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Product summary
What can the product work for?
Anti-aging
What does the product description say?
As a result wrinkles are reduced for 100% of women (2).
adenosine
0.15% -
0.65%
Irritation risk:
Concentration: Effectiveness: HIGH
Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)
retinol
0.15% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating
niacinamide
1.2% -
1.9%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
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Evens skin tone
What does the product description say?
Skin quality is improved, with more even and smooth skin.
retinol
0.15% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating
niacinamide
1.2% -
1.9%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Anti-blemish
retinol
0.15% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating
niacinamide
1.2% -
1.9%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Exfoliation
retinol
0.15% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating
Moisturizing
niacinamide
1.2% -
1.9%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
glycerin
4.2% -
6.4%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
sodium hyaluronate
0.3% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
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Anti-oxidation
retinol
0.15% -
0.7%
Irritation risk:
Concentration: Effectiveness: HIGH
Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating
adenosine
0.15% -
0.65%
Irritation risk:
Concentration: Effectiveness:
LOW
Might help improve cell turnover and reduce inflammation in skin. One study shows that the ingredients might be able to help reduce dynamic wrinkles (for example, in the corners of the eyes or on the forehead)
tocopherol
0.1% -
0.45%
Irritation risk:
Concentration: Insufficient!
Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself
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Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Evens skin tone |
Total Promises Fulfilled score:
100/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 2
Potential irritants
alcohol denat.
2.7% -
4%
Irritation risk:
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
propylene glycol
1% -
1.45%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
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Comodogenic ingredients
glycine soja oil
1.4% -
2%
Irritation risk: Comedogenicity: Medium
Works for:
Moisturizing
A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.
User reviews (0)
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
1.2% -
1.9%
Irritation risk:
Works for:
Anti-blemish,
Anti-aging,
Evens skin tone,
Moisturizing,
Reduces irritation,
Anti-inflammatory,
Reduces redness,
Antibacterial
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
retinol
0.15% -
0.7%
Irritation risk:
Works for:
Evens skin tone,
Anti-aging,
Anti-oxidation,
Exfoliation,
Mattifying,
Anti-blemish
Two steps removed from the active form of vitamin A - retinoic acid. Once converted to the retinoic acid in the skin, retinol is proven to be effective against all signs of aging. It improves skin cell turnover, helps fight blemishes and clogged pores, can regulate excess oil production and even skin tone. It can, however, be quite irritating
Show more
Potential irritants
alcohol denat.
2.7% -
4%
Irritation risk:
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
propylene glycol
1% -
1.45%
Irritation risk:
Works for:
Moisturizing
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
Show more
Comodogenic ingredients
glycine soja oil
1.4% -
2%
Irritation risk: Comedogenicity: Medium
Works for:
Moisturizing
A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.
All ingredients
glycerin
4.2% -
6.4%
Irritation risk:
Works for:
Moisturizing
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
isononyl isononanoate
3.6% -
5.4%
Irritation risk:
Works for:
Moisturizing
Forms a protective film on the surface of the skin to prevent moisture loss. Gives a velvety feel to products while reducing tackiness
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Ingredient list view
Water, Glycerin, Isononyl isononanoate, Alcohol denat., Pentylene glycol, Dicaprylyl ether, Glycine soja oil, Niacinamide, Propylene glycol, Peg-6 caprylic/capric glycerides, Alaria esculenta extract, Macrocystis pyrifera extract, Unknown, Dicaprylyl carbonate, Glyceryl isostearate, Ppg-6-decyltetradeceth-30, Sodium hyaluronate, Sodium hydroxide, Retinol, Adenosine, Ammonium polyacryloyldimethyl taurate, Caprylic/capric triglyceride, Caprylyl glycol, Vitreoscilla ferment, Trisodium ethylenediamine disuccinate, Xanthan gum, Butylene glycol, Tocopherol, Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate, Potassium sorbate, Sodium benzoate, Phenoxyethanol, Linalool, Geraniol, Limonene, Parfum, Unknown
Sources
- Glycerol and the skin: holistic approach to its origin and functions
- 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
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Retinoids in the treatment of skin aging: an overview of clinical efficacy and safety
- Improvement of naturally aged skin with vitamin A (retinol)
- A comparative study of the effects of retinol and retinoic acid on histological, molecular, and clinical properties of human skin
- Evaluation of anti-wrinkle efficacy of adenosine-containing products using the FOITS technique
- Safety Assessment of Acryloyldimethyltaurate Polymers as Used in Cosmetics
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Safety Assessment of Pentaerythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate as Used in Cosmetics