Kose Sekkisei Skincare UV Gel SPF 50+ PA++++
Works for
Sun protectionSPF 50 · 4 UV filtersBroad spectrum
This product offers a good level of protection against both UVB and UVA rays.
This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.
Anti-agingSide benefit · TocopherolWorks well
This product can help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.
Evens skin toneSide benefit · No ingredient credited for this claimWorks well
This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).
MoisturizingSide benefit the brand mentions · Glycerin, Dimethicone + 8 moreWorks
“Its milky gel texture supplies ample moisture for comfortable daily wear.”
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:
glycerin, butylene glycol.
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: dimethicone, squalane.
Can it cause trouble?
Irritancy2 strong irritants: Alcohol, 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%
Alcohol~8.2–10%
- Irritation risk
- High
Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties
More about AlcoholEthylhexyl methoxycinnamate~4.6–5.6%
- Irritation risk
- High
Octinoxate. When used in higher concentrations, works as a sunscreen protecting the skin from UVB rays. When used in lower concentration, helps to preserve the product formulation. Is shown to be harmful to coral reefs - consider avoiding bathing in coral reef areas when wearing a product with this ingredient. It can be irritating
More about Ethylhexyl methoxycinnamatePropylene glycol dicaprate~3.1–3.8%
- Irritation risk
- Low
An emollient that helps soften the upper layer of the skin
More about Propylene glycol dicapratePolysilicone-15~3.1–3.8%
- Irritation risk
- Medium
A UV filter. Effective against UVB rays, but does not protect against the most aging UVA light
More about Polysilicone-15Diethylamino hydroxybenzoyl hexyl benzoate~2.4–2.9%
- Irritation risk
- Medium
Uvinul A Plus. A new generation broad spectrum sunscreen that offers an effective protection especially in the UVA range. It is stable in formulations. Unfortunately, is not approved by the FDA (US) yet
More about Diethylamino hydroxybenzoyl hexyl benzoateButylene glycol~1.5–1.9%
- Irritation risk
- Low
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
More about Butylene glycolBis-ethylhexyloxyphenol methoxyphenyl triazine~1.8–2.2%
- Irritation risk
- Medium
Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Approved by the US FDA in 2026 (listed as bemotrizinol on US labels).
More about Bis-ethylhexyloxyphenol methoxyphenyl triazineGlycerin~1.2–1.4%
- 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 GlycerinDimethicone~0.95–1.15%
- 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 DimethiconeRhodomyrtus tomentosa fruit extract~0.6–0.95%
- Irritation risk
- Low
Angelica acutiloba root extract~0.5–0.75%
- Irritation risk
- Low
Tocopherol~0.45–0.7%
- 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 TocopherolBht~0.4–0.6%
Disodium edta~0.35–0.6%
Peg-30 phytosterol~0.4–0.6%
Peg-5 phytosterol~0.35–0.65%
Acrylates/c10-30 alkyl acrylate crosspolymer~0.3–0.6%
- Irritation risk
- Medium
Maintains the texture of skincare products. Allows the product to spread evenly. Helps oil and water mix together
More about Acrylates/c10-30 alkyl acrylate crosspolymerDimethicone/phenyl vinyl dimethicone crosspolymer~0.25–0.5%
- Irritation risk
- Low
Vinyl dimethicone/methicone silsesquioxane crosspolymer~0.25–0.45%
- Irritation risk
- Low
A type of silicone that create a smooth product finish and can create an optical soft-focus effect on the skin. Helps to thicken the product consistency
More about Vinyl dimethicone/methicone silsesquioxane crosspolymerCarbomer~0.25–0.45%
- 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 CarbomerDiphenylsiloxy phenyl trimethicone~0.25–0.45%
- Irritation risk
- Low
Help improve the product's texture
More about Diphenylsiloxy phenyl trimethiconeSqualane~0.3–0.5%
- 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 SqualaneGlyceryl stearate~0.25–0.5%
- 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 stearateCetearyl alcohol~0.25–0.5%
- 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 alcoholZeolite~0.25–0.45%
Talc~0.3–0.6%
Phytosteryl macadamiate~0.2–0.4%
- Irritation risk
- Low
Helps soften the upper layer of the skin
More about Phytosteryl macadamiatePotassium hydroxide~0.15–0.25%
Phenoxyethanol~0.1–0.2%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolMethylparaben~0.1–0.15%
Parfum~0.05–0.1%
- Irritation risk
- High
An aromatic blend of unspecified and possibly irritating ingredients
More about ParfumMica~0.05–0.1%
- Irritation risk
- Low
Creates an illusion of smoother and more radiant skin tone. Adds shimmer to the skin by reflecting light
More about MicaIngredient list view
Water, Alcohol, Ethylhexyl methoxycinnamate, Propylene glycol dicaprate, Polysilicone-15, Diethylamino hydroxybenzoyl hexyl benzoate, Butylene glycol, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Glycerin, Dimethicone, Unknown, Rhodomyrtus tomentosa fruit extract, Angelica acutiloba root extract, Tocopherol, Unknown, Bht, Disodium edta, Peg-30 phytosterol, Peg-5 phytosterol, Acrylates/c10-30 alkyl acrylate crosspolymer, Dimethicone/phenyl vinyl dimethicone crosspolymer, Vinyl dimethicone/methicone silsesquioxane crosspolymer, Carbomer, Diphenylsiloxy phenyl trimethicone, Unknown, Squalane, Glyceryl stearate, Cetearyl alcohol, Zeolite, Talc, Phytosteryl macadamiate, Potassium hydroxide, Phenoxyethanol, Methylparaben, Parfum, Mica
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.
| KoseSekkisei Skincare UV Gel SPF 50+ PA++++YOUR PRODUCT | BioreUV Aqua Rich Watery Essence SPF50+/PA++++ | RITUALSThe Ritual of Namaste SPF 50 Daily Sun Protection | KUMANO COSMEReihaku Hatomugi UV Milky Gel SPF 31 PA+++ | |
|---|---|---|---|---|
| Match | — | 38% | 36% | 36% |
| Price | — | $10.89 | $40.02 | $17.10 |
| Shared key ingredients | — | 5 of 9 | 6 of 9 | 4 of 9 |
| Key difference | — | Arginine | Panthenol | Mineral Oil |
| Irritancy | Medium | Medium | Low | Medium |
| SPF | SPF 50 | SPF 50 | SPF 50 | SPF 31 |
| Drying alcohol | Contains drying alcohol | Contains drying alcohol | Contains drying alcohol | Contains drying alcohol |
| View product | Shop | Shop | Shop |
More alternatives: ISNTREE Hyaluronic Acid Watery Sun Gel SPF50+ PA++++Instree Hyaluronic Acid Watery Sun Gel - SPF 50+
Product summary
Based on the ingredients included, we believe that "Kose - Sekkisei Skincare UV Gel SPF 50+ PA++++" can offer reliable sun protection. We love that it can protect from both UVA and UVB rays (not all sunscreens with SPF ratings give UVA protection. UVA rays do not cause sunburn, but still damage our skin and lead to early aging).
It contains good moisturizing ingredients and can double as a hydrating day cream. Like all broad-spectrum sunscreens, this product helps prevent early signs of aging.
Sunscreen filters
This is a so-called "chemical" sunscreen. It means that it uses organic UV filters. They typically offer good sun protection and rarely leave a white cast, but they can be irritating for some people with sensitive skin. The UV filters in this sunscreen are: tinosorb s 1.70% - 2.10%, uvinul a plus 2.40% - 2.90%, octinoxate 4.60% - 5.60% and polysilicone-15 3.10% - 3.80%.
Irritation risk
This sunscreen contains some common irritants, including those without a benefit for the skin. We assess the overall irritancy of it to be medium. For a detailed overview of all potential irritants: click here
You can see the detailed formula review with the breakdown of all actives in the product and the full ingredient list with estimated concentrations in the tables below.
Price
The product retails from 14.30$ up to 24.30$ 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 6 studies and safety reviews.
- 1
- 2
- 3Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
- 4Vitamin E in dermatologyncbi.nlm.nih.gov
- 5Vitamin E and Skin Healthlpi.oregonstate.edu
- 6Safety Assessment of Phytosterols as Used in Cosmeticscir-safety.org
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