PRODUCT REVIEW
Ren Skincare Bio Retinoid™ Youth Cream
Can it cause trouble?
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Price as of 10/3/2025 6:0 GMT.
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What can the product work for?
Moisturizing
What does the product description say?
Powered by Bidens Pilosa, our plant-derived alternative to retinol , this new-formula moisturiser is proven to deliver visibly firmer, more supple and healthier-looking skin after 28 days* while limiting irritation, making it suitable for sensitive skin .
caprylic/capric triglyceride
2.4% -
3%
Irritation risk:
Concentration: Effectiveness: HIGH
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
glycerin
3.1% -
3.7%
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
helianthus annuus seed oil
0.25% -
0.45%
Irritation risk:
Concentration: Effectiveness: HIGH
A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function
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Anti-aging
What does the product description say?
With 92% natural-origin ingredients, we’ve included Red Algae extract for an instant visible-lift effect , smoothing the appearance of fine lines and wrinkles, and Olive Leaf extract to help prevent loss of firmness , while better protecting skin from free radical damage caused by environmental pollution.
dipalmitoyl hydroxyproline
0.45% -
0.65%
Irritation risk:
Concentration: Effectiveness:
LOW
Is claimed to stimulate collagen and elastin production, as well as work as an anti-oxidant. There is however not enough evidence for its effectiveness
ascorbic acid
0.2% -
0.4%
Irritation risk:
Concentration: Insufficient!
The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging
lactic acid
0.2% -
0.4%
Irritation risk:
Concentration: Insufficient!
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
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Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Moisturizing | |
| Anti-aging |
Total Promises Fulfilled score:
62/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 5
Potential irritants
pullulan
0.25% -
0.5%
Irritation risk:
Works for:
Mattifying
Creates a thin drying film on the skin resulting in a short-term tightening effect
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Comodogenic ingredients
cetearyl alcohol
5% -
6.2%
Irritation risk: Comedogenicity: Medium
Works for:
Cleansing,
Moisturizing
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
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User reviews (0)
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| Irritancy | IRRITANCY
HIGH
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HIGH
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MEDIUM
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MEDIUM
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MEDIUM
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Ingredients & concentrations
All ingredients
Key Actives
tocopherol
0.25% -
0.45%
Irritation risk:
Works for:
Anti-oxidation,
Moisturizing,
Anti-inflammatory,
Anti-aging
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
rosa canina fruit oil
4.2% -
5.1%
Irritation risk:
Works for:
Moisturizing,
Anti-oxidation
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
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Potential irritants
pullulan
0.25% -
0.5%
Irritation risk:
Works for:
Mattifying
Creates a thin drying film on the skin resulting in a short-term tightening effect
Show more
Comodogenic ingredients
cetearyl alcohol
5% -
6.2%
Irritation risk: Comedogenicity: Medium
Works for:
Cleansing,
Moisturizing
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
Show more
All ingredients
cetearyl alcohol
5% -
6.2%
Irritation risk: Comedogenicity: Medium
Works for:
Cleansing,
Moisturizing
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
rosa canina fruit oil
4.2% -
5.1%
Irritation risk:
Works for:
Moisturizing,
Anti-oxidation
A great emollient. Contains vitamin E (tocopherol) which may give it some anti-oxidant properties. Can contain volatile compounds and can be irritating
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Ingredient list view
Water, Cetearyl alcohol, Rosa canina fruit oil, Glycerin, Caprylic/capric triglyceride, Oleyl alcohol, Myristyl myristate, Oryza sativa bran oil, Elaeis guineensis oil, Lauryl laurate, Triheptanoin, Cetearyl glucoside, Gossypium herbaceum seed oil, Dipalmitoyl hydroxyproline, Oryza sativa germ oil, Bidens pilosa extract, Hydroxypropyl methylcellulose, Hydroxyacetophenone, Oryzanol, Linum usitatissimum seed oil, Phenoxyethanol, Pullulan, Myristyl laurate, Parfum, Palmitic acid, Kappaphycus alvarezii extract, Tocopherol, Sodium hyaluronate, Sodium sulfite, Xanthan gum, Decyl glucoside, Fructan, Olea europaea leaf extract, Rosa damascena extract, Lactic acid, Porphyridium cruentum extract, Helianthus annuus seed oil, Ascorbic acid, Citric acid, Phenethyl alcohol, Ziziphus jujuba seed extract, Glucose, Linalool, Citronellol, Sodium hydroxide, Geraniol, Ethylhexylglycerin, Benzyl alcohol, Beta-carotene, Daucus carota sativa root extract, Daucus carota sativa seed oil, Ascorbyl palmitate
Sources
- Glycerol and the skin: holistic approach to its origin and functions
- Study on the Composition of Rice Bran Oil and Its Higher Free Fatty Acids Value
- 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)
- Antioxidant activity of gamma-oryzanol: Mechanism of action and its effect on oxidative stability of pharmaceutical oils
- Skin Anti-aging Assays of Proanthocyanidin Rich Red Rice Extract, Oryzanol and Other Phenolic Compounds
- Vitamin E in dermatology
- Vitamin E and Skin Health
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Ecofriendly surfactant is allergen of the year
- Wound Repair Potential of Olea europaea L. Leaf Extracts Revealed by In Vivo Experimental Models and Comparative Evaluation of the Extracts' Antioxidant Activity
- Epidermal and dermal effects of topical lactic acid
- Dual Effects of Alpha-Hydroxy Acids on the Skin
- 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
- Final Report on the Safety Assessment of Phenethyl Alcohol
- Topical Glucose Induces Claudin-1 and Filaggrin Expression in a Mouse Model of Atopic Dermatitis and in Keratinocyte Culture, Exerting Anti-inflammatory Effects by Repairing Skin Barrier Function
- Annex I: Clinical evidence regarding sensitisation to individual fragrance chemicals and to natural extracts