Knours Koolsol Ultra Light Invisible Mineral Sunscreen Broad Spectrum SPF 50
Works for
2 of 2 advertised claims delivered
Sun protectionSPF 50 · 2 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.
This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.
MoisturizingMadecassoside, Niacinamide + 8 moreStrong evidence
“Designed for all skin tones and types, it’s enriched with Centella Asiatica, Snow Mushroom, and Aloe to hydrate and soothe, making it perfect for daily use, even on sensitive skin.”
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, tremella fuciformis sporocarp extract.
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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: madecassoside, niacinamide, panthenol
Anti-blemishNot advertised by the brand · Niacinamide, Centella asiatica 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.
Evens skin toneNot advertised by the brand · Niacinamide, MadecassosideStrong evidence
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).
Anti-agingNot advertised by the brand · Niacinamide, Madecassoside + 2 moreStrong evidence
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.
These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: asiaticoside, madecassoside.
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.
This product can also 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.
Anti-oxidationNot advertised by the brand · Asiaticoside, Madecassoside + 3 moreStrong evidence
This product contains antioxidants (asiaticoside, madecassoside) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).
Can it cause trouble?
Irritancy16 flagged ingredientsLow risk
ComedogenicClean of flagged comedogenic ingredientsNone flagged
User reviews
Be the first — your take helps the next person decide.
Ingredients
Filter by role to see what each ingredient is doing.
Zinc oxide~44–54%
- Irritation risk
- Low
A broad spectrum sunblock (protects from both UVA and UVB rays). Is suitable for most sensitive skins. In small concentrations, can be used as a colorant
More about Zinc oxideWater~12–15%
Isoamyl laurate~4.3–5.3%
- Irritation risk
- Medium
Helps stabilize emulsions and create a nice product texture
More about Isoamyl lauratePropanediol~2.9–3.5%
- Irritation risk
- Low
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
More about PropanediolButyloctyl salicylate~2.1–2.6%
- Irritation risk
- Medium
A synthetic ester of salicylic acid that is used to help disperse pigments and boost effectiveness of sunscreen ingredients. It is able to absorb UV light (working as an organic, or chemical filter), but is not approved as a sunscreen ingredient on its own
More about Butyloctyl salicylateC13-15 alkane~1.7–2.1%
Niacinamide~1.5–1.9%
- 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 NiacinamideSodium polyacryloyldimethyl taurate~1.3–1.6%
- Irritation risk
- Medium
Helps oil and water mix together
More about Sodium polyacryloyldimethyl taurateLauryl glucoside~1.3–1.6%
Polyhydroxystearic acid~1–1.2%
- Irritation risk
- Medium
Used to create a thicker product consistency and stabilize the formulation
More about Polyhydroxystearic acidPolyglyceryl-6 laurate~0.7–1.1%
- Irritation risk
- Medium
Helps oil and water mix together
More about Polyglyceryl-6 laurateSilica~0.95–1.15%
Ethyl ferulate~0.55–0.8%
- Irritation risk
- Low
Hydrogenated lecithin~0.5–0.8%
- Irritation risk
- Low
Helps to retain moisture by creating a protective barrier on the skin. Rich in fatty acids. Improves product texture and helps with the penetration of other ingredients.
More about Hydrogenated lecithinPolyglyceryl-6 polyricinoleate~0.5–0.75%
- Irritation risk
- Medium
Helps oil and water mix together
More about Polyglyceryl-6 polyricinoleateTocopheryl acetate~0.5–0.7%
- Irritation risk
- Medium
A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.
More about Tocopheryl acetateEthylene brassylate~0.4–0.6%
Hydroxyacetophenone~0.35–0.65%
Myristyl glucoside~0.45–0.65%
- Irritation risk
- Low
Pongamia pinnata seed extract~0.3–0.55%
- Irritation risk
- Low
Caprylyl glycol~0.3–0.55%
- Irritation risk
- Medium
Helps preserve products and creates a nice product texture
More about Caprylyl glycolEugenia caryophyllus bud extract~0.2–0.4%
- Irritation risk
- Low
Solidago virgaurea extract~0.2–0.4%
- Irritation risk
- Low
1,2-hexanediol~0.2–0.4%
Phenoxyethanol~0.2–0.4%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolBiosaccharide gum-4~0.2–0.35%
Panthenol~0.2–0.35%
- Irritation risk
- Low
Helps attract water to the upper layer of the skin and can help improve skin barrier function
More about PanthenolTremella fuciformis sporocarp extract~0.2–0.35%
- Irritation risk
- Low
Mushroom extract that helps attract water to the upper layer of the skin
More about Tremella fuciformis sporocarp extractGlycerin~0.15–0.3%
- 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 GlycerinButylene glycol~0.15–0.25%
- 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 glycolCentella asiatica extract~0.2–0.35%
- Irritation risk
- Medium
A plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.
More about Centella asiatica extractMadecassoside~0.1–0.15%
- Irritation risk
- Medium
An antioxidant that is typically derived from plant Centella Asiatica. It can help neutralize free radicals in skin and support skin barrier function. It could, however, itself be irritating. It is often unstable in formulations
More about MadecassosideAloe barbadensis leaf juice powder~0.05–0.1%
- Irritation risk
- Medium
Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin
More about Aloe barbadensis leaf juice powderAsiaticoside~0.01–0.05%
- Irritation risk
- Medium
An active compound of Centella Asiatica plant extract. In combination with other active compounds of Centella Asiatica extract (madecasosside, asiatic acid and madecassic acid), asiaticoside has been shown to be helpful in wound-healing, restoring skin barrier function and supporting collagen production in skin. It can, however, itself be irritating
More about AsiaticosideIngredient list view
Zinc oxide, Water, Isoamyl laurate, Propanediol, Butyloctyl salicylate, C13-15 alkane, Niacinamide, Sodium polyacryloyldimethyl taurate, Lauryl glucoside, Polyhydroxystearic acid, Polyglyceryl-6 laurate, Silica, Ethyl ferulate, Hydrogenated lecithin, Polyglyceryl-6 polyricinoleate, Tocopheryl acetate, Ethylene brassylate, Hydroxyacetophenone, Myristyl glucoside, Pongamia pinnata seed extract, Caprylyl glycol, Eugenia caryophyllus bud extract, Solidago virgaurea extract, 1,2-hexanediol, Phenoxyethanol, Biosaccharide gum-4, Panthenol, Tremella fuciformis sporocarp extract, Glycerin, Butylene glycol, Centella asiatica extract, Madecassoside, Aloe barbadensis leaf juice powder, Asiaticoside
Compare prices
Retailers ranked by price — lowest first.
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.
| KnoursKoolsol Ultra Light Invisible Mineral Sunscreen Broad Spectrum SPF 50YOUR PRODUCT | innisfreeGreen Tea Hyaluronic Hydrating Sun Serum SPF50 Sérum Solaire | CeraVeMineral Sunscreen Lotion, SPF 30 | NEEDLYMild non-nano sun milk SPF 50+ PA++++ | |
|---|---|---|---|---|
| Match | — | 84% | 79% | 79% |
| Price | — | $24.00 | $19.99 | — |
| Shared key ingredients | — | 4 of 9 | 5 of 9 | 4 of 9 |
| Key difference | — | Adenosine | Phytosphingosine | Adenosine |
| Irritancy | Low | Low | Low | Low |
| SPF | SPF 50 | SPF 50 | SPF 30 | SPF 50 |
| Drying alcohol | — | — | — | — |
| View product | Shop | Shop | Shop |
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 29 studies and safety reviews.
- 1A review of inorganic UV filters zinc oxide and titanium dioxideonlinelibrary.wiley.com
- 2
- 3
- 4
- 5
- 6
Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.