Works for:
based on ingredients and %- Moisturizing
Doesn't work for:
based on ingredients and %- Evens skin tone
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 2
Key actives
Product Summary
"Ren Skincare - Night Duo - Glowing and Even Skin" is a well-rounded moisturizing product. As we expect from a proper moisturizer, the formula includes a combo of effective humectants and emollients. These are the two different types of ingredients that are essential for improving the skin hydration and supporting a healthy skin barrier. Humectants in this product (panthenol, arginine, glycerin, glycogen and sodium lactate) help to increase the water content in the upper layer of the skin. (These ingredients do so by "capturing" water molecules from the outside air or from within the deeper layers of the skin). Emollients in this formulation (arginine, simmondsia chinensis seed oil, squalane, cetearyl alcohol and cetyl alcohol) 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
- This formulation also includes panthenol (pro-vitamin B5) at about 0.45% - 1.05% concentration. In this concentration, panthenol works effectively to improve the skin barrier and reduce inflammation.
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 for 61.00£ in the United Kingdom.
For a detailed price comparison: click here.
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:
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, simmondsia chinensis seed oil.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: panthenol
Can help attract water to the upper layer of the skin. In crystal form, it can work as a gentle exfoliant, gentler than the salt scrub. Helps stabilize the emulsion
Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product
An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.
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
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Helps attract water to the upper layer of the skin
Helps attract water to the upper layer of the skin and can help improve skin barrier function
Softens the upper layer of skin and helps restore the healthy skin barrier. Has shown to help calm down inflammation in skin. It is a stable oil, meaning that it retains its properties even when exposed to air.
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
Can help attract water to the upper layer of the skin
Helps to soften the upper layer of the skin without creating a greasy texture
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
An emollient that helps soften the skin. It also forms a protective on its surface to reduce water loss.
An emollient that can also help water and oil mix together, as well as prevent bacteria growth in products
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)
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin
Evens skin tone
What does the product description say?
Glowing and Even Skin
Source: From product name
Effective ingredients missing or their concentration is too low
A derivative of azelaic acid. It is obtained by reacting the chloride of azelaic acid with two molecules of glycine (an amino acid) and potassium hydroxide. It is less studied than azelaic acid, but the available research suggests that it also can be effective in reducing skin redness, hyperpigmentation and blemishes. There are claims that it is more bio-available and more effective than azelaic acid, but no comparison study is available. Potassium azeloyl diglycinate is better soluble in water compared with azelaic acid. Because of this property, products with potassium azeloyl digclycinate can have a nicer texture
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)
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Evens skin tone |
Total Promises Fulfilled score: 0/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Ren Skincare Night Duo - Glowing and Even Skin | Current | $61.00 | |
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REVOLUTION SKINCARE Oily Skin Intense Peeling Solution | 77% | $-1.00 | |
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Key Actives
Potential irritants
Comedogenic ingredients
All ingredients
Ingredient list view
Cream, Water, Coco-caprylate/caprate, Cetyl alcohol, Cetearyl alcohol, Cetyl phosphate, Glycerin, Isodecyl neopentanoate, Simmondsia chinensis seed oil, Squalane, Arginine, Benzyl alcohol, Panthenol, Glycogen, Sodium dehydroacetate, Dehydroacetic acid, Parfum, Sucrose, Plankton extract, Lecithin, Citric acid, Sodium hydroxide, Citral, Limonene, Linalool, Parfum, Water, Sodium lactate, Lactic acid, Heptyl glucoside, Potassium azeloyl diglycinate, Triethyl citrate, Glyceryl caprylate, Salix nigra bark extract, Benzoic acid, Citrus nobilis peel oil, Citrus aurantium dulcis flower oil, Citrus grandis peel oil, Citrus tangerina peel oil, Heptanol, Parfum, Limonene
- Safety Assessment of Alkyl Esters as Used in Cosmetics
- Safety Assessment of Alkyl Phosphates as Used in Cosmetics
- Glycerol and the skin: holistic approach to its origin and functions
- Skin moisturizing effects of panthenol-based formulations
- Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmetics
- 4 Final Report on the Safety Assessment of Sodium Dehydroacetate and Dehydroacetic Acid
- Epidermal and dermal effects of topical lactic acid
- Dual Effects of Alpha-Hydroxy Acids on the Skin
- Clinical and instrumental assessment of the effects of a new product based on hydroxypropyl chitosan and potassium azeloyl diglycinate in the management of rosacea
- A Preliminary Clinical Evaluation of a Topical Product for Reducing Slight Rosacea Imperfections
- Azeloyl-Glycine: A new active in skin disequilibrium
- Formulation and evaluation of the cream made from potassium azeloyl diglycinate as an anti-aging
- Citric Acid, Inorganic Citrate Salts and Alkyl Citrate Esters As Used in Cosmetics
- Safety Assessment of Citrus-Derived Peel Oils as Used in Cosmetics
- Oxidized citrus oil (R-limonene): A frequent skin sensitizer in Europe
- Air oxidation increases skin irritation from fragrance terpenes
- Biological Activities and Safety of Citrus spp. Essential Oils