Works for
MoisturizingCaprylic/capric triglyceride, Glycerin + 14 moreWorks
“This does exactly what it says, calms,reduces redness and plumps and moisturises skin great serum with the white mushroom extract that is absorbed by the skin beautifully”
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, caprylic/capric triglyceride.
Can it cause trouble?
Irritancy4 strong irritants: Citrus aurantium amara flower extract, Rosmarinus officinalis leaf extract + 2 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.
Water~45–55%
Caprylic/capric triglyceride~7–8.5%
- 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 triglycerideGlycerin~4.2–5.2%
- 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 GlycerinPropanediol~3.2–3.9%
- Irritation risk
- Low
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
More about PropanediolCoco-caprylate/caprate~2.4–3%
- Irritation risk
- Low
Helps to soften the upper layer of the skin without creating a greasy texture
More about Coco-caprylate/caprateSqualane~2.1–2.6%
- Irritation risk
- Low
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.
More about SqualaneCetyl alcohol~1.7–2.1%
- Irritation risk
- Low
A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together
More about Cetyl alcoholCetyl phosphate~1.4–1.8%
Crambe abyssinica seed oil~1.2–1.4%
- Irritation risk
- Medium
Helps soften the upper layer of the skin
More about Crambe abyssinica seed oilArginine~0.9–1.1%
- 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 ArginineGlycine soja oil~0.7–1.05%
- Irritation risk
- Medium
- Comedogenicity
- 2/5
A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.
More about Glycine soja oilGlyceryl stearate~0.6–0.95%
- 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 stearatePhenoxyethanol~0.5–0.75%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolSodium dehydroacetate~0.3–0.6%
Ethylhexylglycerin~0.45–0.65%
Inulin~0.4–0.65%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin. Is claimed to support the growth of "good" bacteria in skin (as a "prebiotic"), but the research is lacking
More about InulinVaccinium vitis-idaea seed oil~0.45–0.7%
- Irritation risk
- Low
Sclerotium gum~0.35–0.6%
- Irritation risk
- Low
Used to create gel-like formulas and stabilize emulsions
More about Sclerotium gumTocopherol~0.3–0.6%
- 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 TocopherolSodium hyaluronate~0.3–0.55%
- Irritation risk
- Low
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
More about Sodium hyaluronateAlbatrellus confluens extract~0.25–0.5%
- Irritation risk
- Low
Alpha-glucan oligosaccharide~0.3–0.6%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin
More about Alpha-glucan oligosaccharideXanthan gum~0.25–0.5%
- Irritation risk
- Low
Used to create a thicker product consistency
More about Xanthan gumSodium carboxymethyl betaglucan~0.25–0.45%
- Irritation risk
- Low
Biosaccharide gum-4~0.25–0.45%
Laminaria ochroleuca extract~0.25–0.45%
- Irritation risk
- Low
- Comedogenicity
- 3/5
Helps attract water to the upper layer of the skin
More about Laminaria ochroleuca extractCitrus aurantium amara flower extract~0.2–0.4%
- Irritation risk
- High
Used as a fragrance for its citrus smell. Can be irritating
More about Citrus aurantium amara flower extractBeta-carotene~0.2–0.4%
Xanthophylls~0.2–0.4%
Helianthus annuus seed oil~0.25–0.45%
- 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 oilRosmarinus officinalis leaf extract~0.15–0.25%
- Irritation risk
- High
Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating
More about Rosmarinus officinalis leaf extractCitric acid~0.15–0.25%
- Irritation risk
- Medium
Can work as an exfoliant but is typically used to adjust the product pH
More about Citric acidLactic acid~0.15–0.25%
- Irritation risk
- Medium
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)
More about Lactic acidSodium hydroxide~0.1–0.2%
Geraniol~0.05–0.15%
Linalool~0.05–0.1%
Ingredient list view
Water, Caprylic/capric triglyceride, Glycerin, Propanediol, Coco-caprylate/caprate, Squalane, Cetyl alcohol, Cetyl phosphate, Crambe abyssinica seed oil, Arginine, Glycine soja oil, Glyceryl stearate, Phenoxyethanol, Sodium dehydroacetate, Ethylhexylglycerin, Inulin, Vaccinium vitis-idaea seed oil, Sclerotium gum, Tocopherol, Sodium hyaluronate, Albatrellus confluens extract, Alpha-glucan oligosaccharide, Xanthan gum, Sodium carboxymethyl betaglucan, Biosaccharide gum-4, Laminaria ochroleuca extract, Citrus aurantium amara flower extract, Beta-carotene, Xanthophylls, Helianthus annuus seed oil, Rosmarinus officinalis leaf extract, Citric acid, Lactic acid, Sodium hydroxide, Geraniol, Linalool
Compare prices
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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.
| Ren SkincareRedness Relief SerumYOUR PRODUCT | NovexpertPro-Collagen Booster Serum | IOPERetinol Expert 0.3% | Lise WatierAge Control Supreme Sublime Advanced Night Cream | |
|---|---|---|---|---|
| Match | — | 44% | 43% | 42% |
| Price | — | — | $79.00 | $92.89 |
| Shared key ingredients | — | 6 of 12 | 6 of 12 | 6 of 12 |
| Key difference | — | Aminobutyric Acid | Acetyl Tetrapeptide-11 | Butyrospermum Parkii Butter |
| Irritancy | High | Medium | Medium | Medium |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
More alternatives: Iris&Romeo Skin Cocoon Barrier Repair Glow Serum with Peptides & NiacinamideAugustinus Bader The Retinol Serum
Product summary
"Ren Skincare - Redness Relief Serum" could be helpful for: Moisturizing, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- Humectants (sodium hyaluronate 0.30% - 0.55%, arginine 0.90% - 1.10% and glycerin 4.20% - 5.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Price
The product retails from 31.46£ up to 65.66£ in the United Kingdom and for 70.40A$ 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 19 studies and safety reviews.
- 1
- 2Safety Assessment of Alkyl Esters as Used in Cosmeticscir-safety.org
- 3
- 4
- 5
- 6Vitamin E in dermatologyncbi.nlm.nih.gov
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