May Island 7 Days Secret 4D Hyaluronic Cream
Works for
1 of 1 advertised claim delivered
MoisturizingNiacinamide, Paraffinum liquidum + 12 moreStrong evidence
“A highly-hydrating cream that contains 12,000ppm quadruple hyaluronic molecules to hydrate the skin.”
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:
sodium acetylated hyaluronate, sodium hyaluronate.
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: butyrospermum parkii butter, dimethicone.
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide, paraffinum liquidum
Evens skin toneNot advertised by the brand · Niacinamide, Morus alba bark extract + 1 moreStrong evidence
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: morus alba bark extract.
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-agingNot advertised by the brand · Niacinamide, Adenosine + 2 moreStrong evidence
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.
Anti-blemishNot advertised by the brand · Niacinamide, Camellia sinensis 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?
Irritancy2 strong irritants: Hibiscus sabdariffa flower extract, ParfumMedium risk
Comedogenic1 ingredient rated 2 or more on the 0–5 pore-clogging scale1 flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Water~45–55%
Dipropylene glycol~7.4–9.1%
- Irritation risk
- Low
Helps to dissolve other ingredients in a formulation. Slows down the rate of product drying
More about Dipropylene glycolParaffinum liquidum~4.6–5.6%
- Irritation risk
- Low
Mineral oil. One of the most effective and well studied occlusive and emollient moisturizing ingredients. Helps reduce moisture loss in skin and repair skin barrier function
More about Paraffinum liquidumNiacinamide~3.1–3.8%
- 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 NiacinamideStearic acid~2.4–3%
- Irritation risk
- Low
Helps oil and water mix together and works as an emollient
More about Stearic acidCetyl alcohol~2–2.4%
- 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 alcoholGlyceryl stearate~1.7–2.1%
- 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 stearatePeg-100 stearate~1.5–1.8%
- Irritation risk
- Low
Helps oil and water mix togehter and creates a nice product texture
More about Peg-100 stearateButyrospermum parkii butter~1.3–1.6%
- 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 butterPolysorbate 60~0.95–1.2%
Dimethicone~0.75–1.1%
- Irritation risk
- Low
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
More about DimethiconeSodium hyaluronate crosspolymer~0.55–0.85%
- Irritation risk
- Medium
Attracts water into the upper layer of the skin
More about Sodium hyaluronate crosspolymerSodium hyaluronate~0.5–0.75%
- Irritation risk
- Low
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
More about Sodium hyaluronateSodium acetylated hyaluronate~0.45–0.7%
- Irritation risk
- Low
A type of hyaluronic acid that works as an excellent moisturizer by attracting water into the upper layer of the skin. Is typically feels less sticky on the skin compared to the usual hyaluronic acid
More about Sodium acetylated hyaluronateHydrolyzed sodium hyaluronate~0.45–0.65%
- Irritation risk
- Low
Attracts water into the upper layer of the skin
More about Hydrolyzed sodium hyaluronatePentylene glycol~0.5–0.75%
- Irritation risk
- Medium
Used to preserve products, dissolve other ingredients and create a nice product texture
More about Pentylene glycolEthylhexylglycerin~0.45–0.65%
Carbomer~0.35–0.6%
- 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 CarbomerPrunus persica fruit extract~0.45–0.65%
- Irritation risk
- High
A fruit extact. Might have some anti-oxidant properties
More about Prunus persica fruit extractHippophae rhamnoides fruit extract~0.3–0.5%
- 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 extractMorus alba bark extract~0.25–0.45%
- Irritation risk
- High
A plant extract that might have anti-oxidant properties and help even out skin tone, but solid evidence is lacking
More about Morus alba bark extractHibiscus sabdariffa flower extract~0.25–0.4%
- Irritation risk
- High
A plant extract that can be irritating. It might contain a compound anthocyanin that could be helpful in neutralizing free radicals
More about Hibiscus sabdariffa flower extractSaururus chinensis leaf/root extract~0.25–0.5%
- Irritation risk
- Low
Opuntia humifusa stem extract~0.2–0.4%
- Irritation risk
- Low
Camellia sinensis leaf extract~0.2–0.35%
- Irritation risk
- Low
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
More about Camellia sinensis leaf extractDisodium edta~0.15–0.3%
Adenosine~0.15–0.25%
- 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 AdenosineSodium hydroxide~0.1–0.2%
Phenoxyethanol~0.1–0.2%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolParfum~0.05–0.1%
- Irritation risk
- High
An aromatic blend of unspecified and possibly irritating ingredients
More about ParfumIngredient list view
Water, Dipropylene glycol, Paraffinum liquidum, Niacinamide, Stearic acid, Cetyl alcohol, Glyceryl stearate, Peg-100 stearate, Butyrospermum parkii butter, Polysorbate 60, Dimethicone, Sodium hyaluronate crosspolymer, Sodium hyaluronate, Sodium acetylated hyaluronate, Hydrolyzed sodium hyaluronate, Pentylene glycol, Ethylhexylglycerin, Carbomer, Prunus persica fruit extract, Hippophae rhamnoides fruit extract, Morus alba bark extract, Hibiscus sabdariffa flower extract, Saururus chinensis leaf/root extract, Opuntia humifusa stem extract, Camellia sinensis leaf extract, Disodium edta, Adenosine, Sodium hydroxide, Phenoxyethanol, Parfum
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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.
| May Island7 Days Secret 4D Hyaluronic CreamYOUR PRODUCT | 12 GRABSOlibetaine Rich Hyaluron Moist Cream | Farm StaySyn-Ake Revitalizing Cream | Rephrintense hydration cream 1.0 | |
|---|---|---|---|---|
| Match | — | 85% | 83% | 81% |
| Price | $16.30 | $19.80+$3.50 | $16.40 | — |
| Shared key ingredients | — | 6 of 10 | 7 of 10 | 7 of 10 |
| Key difference | — | Panthenol | Dipeptide Diaminobutyroyl Benzylamide Diacetate | Ceramide Np |
| Irritancy | Medium | Low | High | Medium |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
Product summary
"May Island - 7 Days Secret 4D Hyaluronic Cream" has a good moisturizing formula. This moisturizer uses a good combo of humectants and emollients. These both types of ingredients are essentials for improving the skin hydration and keeping the skin barrier healthy. Humectants in this product (sodium acetylated hyaluronate and sodium hyaluronate) 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). Paraffinum liquidum, butyrospermum parkii butter, dimethicone, cetyl alcohol and glyceryl stearate in this product help decrease the water evoporation from the skin, so that it stays hydrated for longer. These ingredients also soften the skin and take away the feeling of tightness and dryness.
Ingredient callouts
- We particularly like that there is a good concentration of Niacinamide (3.10% - 3.80%) in this moisturizer. Niacinamide is a well-studied multi-tasking active. It is a great ingredient to have in a moisturizer. It is stable, and can work well in almost any hydrating formulation. There is solid evidence that Niacinamide can help support skin barrier, regulate oil production and reduce acne and clogged pores. It also helps to fight photodamage and help improve the skin tone, reducing pigmentation marks.
- Adenosine 0.15% - 0.25%. 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
This formulation includes some common irritants, including ingredients that do not provide a benefit for the skin. We assess the overall irritancy of this moisturizer to be medium. 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 18.40$ up to 29.77$ in the United States.
For a detailed price comparison: click here.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 15 studies and safety reviews.
- 1A review on the extensive skin benefits of mineral oilncbi.nlm.nih.gov
- 2
- 3
- 4
- 5Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
- 6Hyaluronic acid: A key molecule in skin agingncbi.nlm.nih.gov
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