BIOTHERM Melting Sun Fluid SPF30
Works for
1 of 1 advertised claim delivered
Sun protectionSPF 30 · 7 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.
Anti-agingNot advertised by the brand · 2 ingredients credited for this claimStrong support
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 toneNot advertised by the brand · No ingredient credited for this claimStrong support
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).
MoisturizingNot advertised by the brand · 5 ingredients credited for this claimGood support
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, propylene 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.
Can it cause trouble?
Irritancy4 strong irritants: Parfum, Linalool + 2 more — patch-test recommendedHigh risk
ComedogenicClean of flagged comedogenic ingredientsNone flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Water~45–55%
Homosalate~6.3–7.7%
- Irritation risk
- Medium
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen. When used in low concentrations, helps to stabilize the product formulation
More about HomosalateOctocrylene~4.4–5.4%
- Irritation risk
- Medium
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
More about OctocryleneEthylhexyl salicylate~3.5–4.3%
- Irritation risk
- Low
Octisalate. A UV filter. It offers some protection against the sun rays that cause sunburn (UVB), but does not protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen
More about Ethylhexyl salicylateButyl methoxydibenzoylmethane~3.1–3.8%
- Irritation risk
- Medium
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
More about Butyl methoxydibenzoylmethaneAlcohol denat.~1.9–2.3%
- Irritation risk
- High
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
More about Alcohol denat.Propanediol~1.6–2%
- Irritation risk
- Low
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
More about PropanediolEthylhexyl triazone~2–2.4%
- Irritation risk
- Medium
Uvinul T. A UV filter. Effective against UVB rays. It is photostable. Can increase water resistance properties of the sunscreen. Unfortunately, not approved by the FDA (US) yet
More about Ethylhexyl triazonePropylene glycol~1.1–1.4%
- Irritation risk
- High
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
More about Propylene glycolDimethicone~1–1.2%
- 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 DimethiconeBis-ethylhexyloxyphenol methoxyphenyl triazine~1.1–1.3%
- Irritation risk
- Medium
Tinosorb S. One of the most effective broad spectrum sunscreen ingredients. Protects from both UVA and UVB rays. It is photostable. Unfortunately, not approved by FDA (US) yet.
More about Bis-ethylhexyloxyphenol methoxyphenyl triazineGlycerin~0.55–0.85%
- 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 GlycerinParfum~0.45–0.65%
- Irritation risk
- High
An aromatic blend of unspecified and possibly irritating ingredients
More about ParfumStyrene/acrylates/dimethicone copolymer~0.35–0.65%
- Irritation risk
- Low
Phenoxyethanol~0.35–0.6%
- Irritation risk
- Low
A preservative. It helps prevent bacterial growth in cosmetic products
More about PhenoxyethanolDrometrizole trisiloxane~0.55–0.8%
- Irritation risk
- Medium
Mexoryl XL. A UV filter. Effective in the UVB and UVA range. It is stable. Unfortunately, not approved in the US yet
More about Drometrizole trisiloxaneGlyceryl oleate~0.35–0.6%
- Irritation risk
- High
Helps oil and water mix together. Can be irritating
More about Glyceryl oleateCarbomer~0.3–0.55%
- 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 CarbomerTriethanolamine~0.25–0.5%
- Irritation risk
- Medium
Used to adjust pH of the product and can help improve the product's smell
More about TriethanolaminePeg-8 laurate~0.25–0.45%
P-anisic acid~0.2–0.4%
- Irritation risk
- High
Helps preserve products. Can mask unpleasant smell. Could be irritating
More about P-anisic acidLinalool~0.15–0.3%
Tocopherol~0.2–0.35%
- 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 TocopherolVitreoscilla ferment~0.2–0.35%
- Irritation risk
- Low
Disodium edta~0.15–0.3%
Geraniol~0.15–0.25%
Citral~0.1–0.25%
Hydrogenated palm glycerides citrate~0.15–0.3%
- Irritation risk
- Low
Helps soften the upper layer of the skin
More about Hydrogenated palm glycerides citrateLecithin~0.15–0.3%
- Irritation risk
- Low
Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin
More about LecithinAscorbyl palmitate~0.05–0.1%
- Irritation risk
- Medium
Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.
More about Ascorbyl palmitateIngredient list view
Water, Homosalate, Octocrylene, Ethylhexyl salicylate, Butyl methoxydibenzoylmethane, Alcohol denat., Propanediol, Ethylhexyl triazone, Propylene glycol, Dimethicone, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Glycerin, Parfum, Styrene/acrylates/dimethicone copolymer, Phenoxyethanol, Drometrizole trisiloxane, Glyceryl oleate, Carbomer, Triethanolamine, Peg-8 laurate, P-anisic acid, Linalool, Tocopherol, Vitreoscilla ferment, Disodium edta, Geraniol, Citral, Hydrogenated palm glycerides citrate, Lecithin, Ascorbyl palmitate, Unknown
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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.
| BIOTHERMMelting Sun Fluid SPF30YOUR PRODUCT | VichyCapital Soleil Sun-Milk for Face and Body SPF 30 | |
|---|---|---|
| Match | — | 50% |
| Price | $22.41 | $26.44+$4.03 |
| Shared key ingredients | — | 8 of 9 |
| Key difference | — | Sodium Hyaluronate |
| Irritancy | High | Medium |
| SPF | SPF 30 | SPF 30 |
| Drying alcohol | Contains drying alcohol | Contains drying alcohol |
| View product | Shop |
Product summary
Based on the ingredients included, we believe that "BIOTHERM - Melting Sun Fluid SPF30" 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).
Its formula is also hydrating, so you might not need an additional moistruizer during the day. Like all broad-spectrum sunscreens, this product has an anti-aging benefit.
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. These are the sun protection ingredients in this sunscreen: tinosorb s 1.10% - 1.30%, avobenzone 3.10% - 3.80%, mexoryl xl 0.55% - 0.80%, octisalate 3.50% - 4.30%, uvinul t 2.00% - 2.40%, homosalate 6.30% - 7.70% and octocrylene 4.40% - 5.40%.
Irritation risk
It contains a bunch of common irritants, including ingredients that do not provide any known benefit for the skin. It might not be the best choice if your skin is sensitive. We assess the overall irritancy of this sunscreen to be high. 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.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 12 studies and safety reviews.
- 1
- 2Surfactants and experimental irritant contact dermatitisncbi.nlm.nih.gov
- 3Propylene Glycolpubmed.ncbi.nlm.nih.gov
- 4Skin-sensitizing and irritant properties of propylene glycolonlinelibrary.wiley.com
- 5
- 6Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
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