ROUND LAB 365 Derma Relief Sun Cream [SPF50+/PA++++]
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79/100 overall score
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About this sunscreen
ROUND LAB 365 Derma Relief Sun Cream [SPF50+/PA++++] is a pure mineral sunscreen using only zinc oxide and titanium dioxide, making it a good choice for those who prefer to avoid chemical filters. It finishes matte and generally does not sting, but as a mineral formula it leaves a more visible white cast and feels somewhat heavier on the skin. The low pore-clogging profile suits breakout-prone skin. Scoring 79/100 with good protection, it is a dependable mineral pick, with white cast the main trade-off.
Ingredient & SPF scores
βοΈ
UV protection
Good
71
- +41 Zinc Oxide at #2, UV filter (UVA1 +18)
- +26.4 Titanium Dioxide at #11, UV filter (UVA1 +4)
- +4 Label claims (SPF 50, PA rating)
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Allergens
Low
98
- +100 Starting score
- β2 Essential oils (Anthemis Nobilis Flower Oil)
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White cast
High
27
- +100 Starting score
- β55 Zinc Oxide at #2
- β15 Titanium Dioxide at #11
- β10 Zinc Oxide + Titanium Dioxide together
- β15 Pure mineral formula
- +9.5 PHSA dispersant, fights agglomeration
- +12.8 Coated minerals (Triethoxycaprylylsilane, Aluminum Hydroxide)
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Heavy feel
Medium
58
- +100 Starting score
- β40 Zinc Oxide at #2
- β6 Titanium Dioxide at #11
- β3 Trimethylsiloxysilicate at #8, silicone wax film
- +7.4 Volatile hydrocarbon at #5, flashes off
π
Fungal acne
High
20
- +100 Starting score
- β24 2 polysorbate/sorbitan emulsifiers that feed Malassezia (Sorbitan Isostearate, Sorbitan Sesquioleate)
- β9 1 oils/butters that feed Malassezia (Hydrogenated Lecithin)
- β45 5 long-chain (C12+) esters that feed Malassezia (Polyglyceryl-2 Isostearate, Polyglyceryl-6 Polyhydroxystearate, Polyglyceryl-6 Polyricinoleate)
- β2 1 ubiquitous fatty ingredients (Stearic Acid), weak Malassezia signal
π
Fabric stains
Low
80
- +100 Starting score
- β15 Zinc Oxide at #2, white marks, worst on dark fabric (washable)
- β5 Both minerals present, heavier deposit
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Moisture
Balanced
LightNourishing
- β 1.5 1 sebum-absorbing powders (Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer)
- β 4 Volatile carriers flash off, leaving a dry finish
- β 5 Zinc Oxide at #2, mild sebum absorbent
- β 1 Glycerin at #43, the anchor humectant
- β 1 1 strong humectants (Panthenol)
- β 1 1 emollient lipids (Squalane)
- β 6 Ceramide barrier lipids
β¨
Finish
Matte
MatteDewy
- β 1 1 sebum-absorbing powders (Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer)
- β 4 Volatile carriers flash off, leaving a dry finish
- β 5 2 dry-touch emollients reduce greasy shine (Isononyl Isononanoate, Caprylyl Methicone)
- β 1 1 emollient lipids (Squalane)
π
Makeup base
Okay
PillsPrimer
- β 5 Primer-style base, volatile silicones and dimethicone slip
- β 3 Quick-setting carrier, fast, even canvas
- β 5 Dry-touch esters, smooth fast-absorbing base
- β 4 Transfer-resistant grip resin, holds makeup
- β 0.5 Gel polymers prone to pilling under friction (Poly C10-30 Alkyl Acrylate)
- β 15 High mineral load at #2 greys under foundation
π
Water resistance
Resistant
Non-water-resistantWater-resistant
- +14 2 film-forming polymers that lock the formula on for water resistance
- +4 1 water-locking waxes
Skincare extras
Beneficial actives this formula contains. Informational only, not part of the rating: their effect depends on a concentration the label does not disclose.
- β¨ Ceramides
Full ingredient list (48)
What each ingredient does and how it moves each rating: green helps, red hurts, β / β give the direction, and β / β shift a slider toward its ends (finish, moisture, makeup base). Auto-derived from our scoring rules and the ingredient's position.
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1 Water
Solvent base, the water phase
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Mineral UV filter (Zinc Oxide), high in the list, a primary filter
- β 41 UV protection, incl. long-UVA (UVA1)
- β 15 white marks, worst on dark fabric (washable)
- light β 5 mild sebum absorbent
- pills β 15 High mineral load greys under foundation
-
Emollient, softens and smooths skin
- matte β 3 dry-touch emollient, anti-shine
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Emollient, softens and smooths skin
- matte β 2 dry-touch emollient, anti-shine
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Volatile hydrocarbon, flashes off for a light finish
- light β 4 volatile carrier, flashes off
- matte β 4 volatile carrier, flashes off
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Emollient, softens and smooths skin
-
Emollient, softens and smooths skin
-
Film former, locks the formula onto skin for water resistance
- β 3 silicone wax film
- β 4 wax water lock
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Thickener and texture, structures the gel or cream
- β 7 film former
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Humectant, pulls water into the skin
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Mineral UV filter (Titanium Dioxide), low in the list, likely a minor contributor
- β 26.4 UV protection, incl. long-UVA (UVA1)
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Thickener and texture, structures the gel or cream
- β 7 film former
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Thickener and texture, structures the gel or cream
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Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
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Emulsifier, keeps oil and water blended
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16 Ceramide NP
Soothing, skin-conditioning active
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17 Squalane
Emollient, softens and smooths skin
- 1 β nourishing emollient lipid
- 1 β dewy emollient lipid
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Soothing, skin-conditioning active
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19 Panthenol
Soothing, skin-conditioning active
- 1 β nourishing humectant
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20 Allantoin
Soothing, skin-conditioning active
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Botanical extract
-
Botanical extract
-
Botanical extract
-
Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
-
Emollient, softens and smooths skin
-
Thickener and texture, structures the gel or cream
-
Emollient, softens and smooths skin
-
Emollient, softens and smooths skin
-
Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
-
Emollient, softens and smooths skin
-
Thickener and texture, structures the gel or cream
-
Humectant, pulls water into the skin
-
Emulsifier, keeps oil and water blended
- β 12 feeds malassezia
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Mattifying powder, absorbs oil and blurs the finish
- light β 1.5 sebum-absorbing powder
- matte β 1 sebum-absorbing powder
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Supporting ingredient
-
Supporting ingredient
-
37 Stearic Acid
Emollient, softens and smooths skin
- β 2 minor malassezia feeder
-
Emulsifier, keeps oil and water blended
- β 12 feeds malassezia
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Antioxidant, protects the formula and skin
-
Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
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Chelator, binds stray metal ions to keep the formula stable
-
Humectant, pulls water into the skin
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43 Glycerin
Humectant, pulls water into the skin
- 1 β nourishing the anchor humectant
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Emollient, softens and smooths skin
-
Antioxidant, protects the formula and skin
-
Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
-
Emulsifier, keeps oil and water blended
- β 9 feeds malassezia
-
48 Tocopherol
Antioxidant, protects the formula and skin
Does ROUND LAB 365 Derma Relief leave a white cast?
White cast tends to be more visible. It is a pure mineral sunscreen based on zinc oxide and titanium dioxide, which commonly leave a noticeable cast, so it may need careful blending on deeper skin tones.
Is the ROUND LAB 365 Derma Relief Sun Cream [SPF50+/PA++++] mineral or chemical?
It is a pure mineral sunscreen. It uses only zinc oxide and titanium dioxide, with no chemical filters.
Is ROUND LAB 365 Derma Relief good?
It scores 79 out of 100 in our rating with good protection. It is a dependable mineral choice, with the more visible white cast being the main trade-off.