Works for
2 of 2 advertised claims delivered
Anti-agingNiacinamide, Adenosine + 3 moreStrong evidence
“It also contains hyaluronic acid, a potent moisturizing agent that helps to hydrate and plump the skin, reducing the appearance of fine lines and wrinkles. Vegan and Cruelty Free.”
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains adenosine, niacinamide.
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.
MoisturizingNiacinamide, Arginine + 14 moreStrong evidence
“It also contains hyaluronic acid, a potent moisturizing agent that helps to hydrate and plump the skin, reducing the appearance of fine lines and wrinkles. Vegan and Cruelty Free.”
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:
arginine, glycerin.
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: arginine, beeswax.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide
Evens skin toneNot advertised by the brand · NiacinamideStrong evidence
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.
Anti-blemishNot advertised by the brand · Niacinamide, Rosmarinus officinalis leaf extractStrong evidence
This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.
Can it cause trouble?
Irritancy8 strong irritants: Zanthoxylum piperitum fruit extract, Rosmarinus officinalis leaf extract + 6 more — patch-test recommendedHigh risk
Comedogenic2 ingredients rated 2 or more on the 0–5 pore-clogging scale2 flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Prunus amygdalus dulcis oil~28–35%
- Irritation risk
- Low
An emollient that softens the skin
More about Prunus amygdalus dulcis oilWater~13–16%
Glycerin~5.4–6.6%
- Irritation risk
- Low
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
More about GlycerinCaprylic/capric triglyceride~4.2–5.1%
- Irritation risk
- Medium
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
More about Caprylic/capric triglyceridePrunus amygdalus dulcis oil~2.9–3.6%
- Irritation risk
- Low
An emollient that softens the skin
More about Prunus amygdalus dulcis oilButyrospermum parkii butter~2.4–3%
- Irritation risk
- Low
- Comedogenicity
- 3/5
A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals
More about Butyrospermum parkii butterPropanediol~1.8–2.2%
- Irritation risk
- Low
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
More about PropanediolNiacinamide~1.6–1.9%
- Irritation risk
- Low
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
More about NiacinamideAdansonia digitata seed oil~1.4–1.7%
- Irritation risk
- Medium
Helps soften the upper layer of the skin
More about Adansonia digitata seed oilBeeswax~1.2–1.5%
- Irritation risk
- Low
Forms a protective barrier that holds water and keeps dry skin hydrated. Keeps an emulsion from separating into its oil and liquid components, and increases the thickness of a product. Can be an allergen
More about BeeswaxStearic acid~1–1.3%
- Irritation risk
- Low
Helps oil and water mix together and works as an emollient
More about Stearic acidCetearyl alcohol~0.95–1.15%
- Irritation risk
- Low
- Comedogenicity
- 2/5
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
More about Cetearyl alcoholCetearyl olivate~0.7–1%
Sorbitan olivate~0.65–0.95%
Olea europaea fruit oil~0.6–0.9%
- Irritation risk
- Medium
An emollient that helps soften the skin but is not effective for restoring its barrier function. Might be helpful to calm down inflammation
More about Olea europaea fruit oilPoria cocos extract~0.6–0.9%
- Irritation risk
- Low
Agastache mexicana flower/leaf/stem extract~0.55–0.85%
- Irritation risk
- Low
Hippophae rhamnoides fruit extract~0.55–0.8%
- Irritation risk
- Medium
A plant extract that might help neutralize free radicals in skin, but research on its effectiveness is lacking
More about Hippophae rhamnoides fruit extractPassiflora incarnata flower extract~0.5–0.75%
- Irritation risk
- Low
Lithospermum erythrorhizon root extract~0.5–0.75%
- Irritation risk
- High
A plant extract that might help neutralize free radicals in skin. Can be used for its fragrance
More about Lithospermum erythrorhizon root extractGlyceryl stearate~0.5–0.8%
- Irritation risk
- Low
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
More about Glyceryl stearateHelianthus annuus seed oil~0.45–0.7%
- Irritation risk
- Low
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
More about Helianthus annuus seed oilCamellia japonica seed oil~0.45–0.65%
- Irritation risk
- Low
A plant oil that helps to soften the upper layer of the skin and can help restore skin's barrier function. Might have an anti-oxidant effect
More about Camellia japonica seed oil1,2-hexanediol~0.35–0.6%
Caprylyl glycol~0.4–0.6%
- Irritation risk
- Medium
Helps preserve products and creates a nice product texture
More about Caprylyl glycolArginine~0.3–0.55%
- Irritation risk
- Low
An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin
More about ArginineCarbomer~0.3–0.6%
- Irritation risk
- Low
Helps create a thicker or gel-like product texture. It is not a surfactant but can be used in gentle cleansing formulations
More about CarbomerUsnea barbata extract~0.3–0.55%
- Irritation risk
- Low
Zanthoxylum piperitum fruit extract~0.3–0.55%
- Irritation risk
- High
Plant extract that has some anti-oxidant properties. It can be irritating. Can be used to improve the product's smell
More about Zanthoxylum piperitum fruit extractPulsatilla koreana extract~0.3–0.55%
- Irritation risk
- Low
Rosmarinus officinalis leaf extract~0.25–0.45%
- Irritation risk
- High
Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating
More about Rosmarinus officinalis leaf extractAdenosine~0.25–0.5%
- Irritation risk
- 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)
More about AdenosineLavandula angustifolia oil~0.25–0.4%
- Irritation risk
- High
An essential oil. Potential allergen and can be irritating. It has some anti-bacterial properties
More about Lavandula angustifolia oilCitrus aurantium dulcis peel oil~0.2–0.35%
- Irritation risk
- High
An essentil oil from orange peel. Potential allergen and can be irritating
More about Citrus aurantium dulcis peel oilTocopherol~0.15–0.3%
- Irritation risk
- Low
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
More about TocopherolAniba rosodora wood oil~0.15–0.25%
Cymbopogon martini oil~0.1–0.15%
- Irritation risk
- High
Aromatic plant oil used in cosmetics as a fragrance. A likely irritant
More about Cymbopogon martini oilGeraniol~0.05–0.1%
Linalool~0.05–0.1%
Ingredient list view
Prunus amygdalus dulcis oil, Water, Glycerin, Caprylic/capric triglyceride, Prunus amygdalus dulcis oil, Butyrospermum parkii butter, Propanediol, Niacinamide, Adansonia digitata seed oil, Beeswax, Stearic acid, Cetearyl alcohol, Cetearyl olivate, Sorbitan olivate, Olea europaea fruit oil, Poria cocos extract, Agastache mexicana flower/leaf/stem extract, Hippophae rhamnoides fruit extract, Passiflora incarnata flower extract, Lithospermum erythrorhizon root extract, Glyceryl stearate, Helianthus annuus seed oil, Camellia japonica seed oil, 1,2-hexanediol, Caprylyl glycol, Arginine, Carbomer, Usnea barbata extract, Zanthoxylum piperitum fruit extract, Pulsatilla koreana extract, Rosmarinus officinalis leaf extract, Adenosine, Lavandula angustifolia oil, Citrus aurantium dulcis peel oil, Tocopherol, Aniba rosodora wood oil, Cymbopogon martini oil, Geraniol, Linalool
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Worth comparing, line by line.
Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.
| KnoursOne Perfect Youth CreamYOUR PRODUCT | EyenlipInjection Eye Cream For Face - 2 Types | Formal BeePropolis Vita C Honey Butter Cream | EvercellRadiance Lifting Cream | |
|---|---|---|---|---|
| Match | — | 97% | 95% | 95% |
| Price | $38.00 | $11.79−$26.21 | $19.92−$18.08 | $12.35−$25.65 |
| Shared key ingredients | — | 8 of 9 | 8 of 9 | 6 of 9 |
| Key difference | — | 3-O-Ethyl Ascorbic Acid | Ceramide Np | Panthenol |
| Irritancy | High | Medium | Medium | Medium |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
Product summary
"Knours - One Perfect Youth Cream" has a good moisturizing formula. To work well, any moisturizer needs to include a combination of water-binding and emollient ingredients. Knours - One Perfect Youth Cream ticks this box. Arginine, glycerin and caprylyl glycol in this product (humectants) attract water molecules to the upper layer of the skin (the water comes from the outside air or from the deeper layers of the skin if the air is dry). Emollients in this formulation (arginine, beeswax, butyrospermum parkii butter, caprylic/capric triglyceride and helianthus annuus seed oil) help to reduce the moisture loss from the skin. They also soften the skin surface and relieve the feeling of dryness and tightness.
Ingredient callouts
- Adenosine 0.25% - 0.50%. It is a compound that in involved in many biological processes inside the skin cells. According one high-quality clinical trial, topical Adenosine in low concentrations can somewhat help improve "deep wrinkles" - the wrinkles that appear with age in places where our faces are most dynamic (for example, on the forehead or in the corners of the eyes).
Irritation risk
There are quite a few common irritants in this product, including ingredients without particular skin benefits. We would not recommend it for sensitive skin. We assess the overall irritancy of this moisturizer to be high. For a detailed overview of all potential irritants: click here
You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.
Price
The product retails from 33.60$ up to 48.00$ in the United States and for 99.32A$ in Australia.
For a detailed price comparison: click here.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 18 studies and safety reviews.
- 1
- 2
- 3
- 4
- 5Use of “natural” oils for moisturization: Review of olive, coconut, and sunflower seed oilonlinelibrary.wiley.com
- 6Abundance of active ingredients in sea-buckthorn oilncbi.nlm.nih.gov
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