ISDIN

ISDIN FotoUltra 100 Active Unify Fusion Fluid SPF50+

Name: ISDIN - FotoUltra 100 Active Unify Fusion Fluid SPF50+
Brand: ISDIN

SPF 50Efficacy90/100IrritancyMedium·4 UV filters

See all ingredients

Edit

Works for

4 of 4 advertised claims delivered

Sun protection

SPF 50 · 4 UV filters

Broad spectrum

SPF 50Broad spectrumMineral + chemical filtersNano filters

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.

UV spectrum

UVB290–320 nmUVA II320–340 nmUVA I340–400 nm

Octocrylene

Titanium Dioxide

Tinosorb S

Avobenzone

FilterCoverageWhat it doesEst. amount

OctocryleneUVB Photo-stable 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~3.7–4.5%

Titanium Dioxide Mineral UVBUVA2 Photo-stable Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin~2.1–2.5%

Tinosorb SBis-ethylhexyloxyphenol Methoxyphenyl TriazineUVBUVA Photo-stable 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.~1.4–1.7%

AvobenzoneButyl MethoxydibenzoylmethaneUVA1Avobenzone. 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.~1.9–2.4%

~ marks concentrations estimated from label position and typical use levels

Reef-safe

No oxybenzone or octinoxate — the two filters banned in Hawaii, Florida Keys and Aruba.

Moisturizing

16 ingredients credited for this claim

Strong support

What the product description says

“Its formula contains hyaluronic acid, which improves skin elasticity and reduces wrinkles, and allantoin, which promotes skin regeneration.Its Fusion Fluid texture melts on the skin.Tested under dermatological control. Waterproof.”

Source: Cocoon Center

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, 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: dimethicone, dimethiconol.

The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: niacinamide, tetrapeptide-30

NiacinamideHeroEffect: HighIs 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~2.4–2.9%

Tetrapeptide-30HeroEffect: High~0.15–0.25%

Peg-10 dimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that works to soften the upper layer of the skin and reduce its water loss~0.5–0.75%

DimethiconeKey active· Emollient, OcclusiveEffect: HighA 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~0.4–0.65%

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.2–0.4%

DimethiconolKey active· Emollient, OcclusiveEffect: HighA silicone that makes products more spreadable and keeps skin smooth. Helps to add gloss to skin and may visually fill in fine lines/wrinkles for short time~0.25–0.45%

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~0.55–0.8%

CyclopentasiloxaneKey active· EmollientEffect: MediumA silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin~4.5–5.4%

Butylene glycol· HumectantEffect: LowUsed 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~0.7–1%

Cyclohexasiloxane· EmollientEffect: LowA silicone that serves as an emollient. Helps create a nice non-greasy feels~1.2–1.5%

Dibutyl adipate· EmollientEffect: LowHelps soften the upper layer of the skin and create a nice product consistency~6.6–8%

Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~0.3–0.55%

Peg-8· HumectantEffect: LowUsed to create a nice product consistency~0.2–0.35%

PanthenolUnder-dosedEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.25–0.5%

AllantoinUnder-dosedEffect: HighHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.2–0.4%

TocopherolEffect: Low, below effective dosePure 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~0.15–0.3%

Evens skin tone

2 ingredients credited for this claim

Strong support

What the product description says

“Isdin Foto Ultra 100 Active Unify Fusion Fluid SPF50+ 50ml is a sun fluid protection with depigmenting action, that clarifies and unifies the complexion.It formulated for peoples that want to treat the spots that usually appear on the forehead area, cheeks and upper lip, whose skin suffers from sun spots.It helps to reduce pigment spots thanks to the DP3-Unify Complex efficiency demonstrated, regulates the production of melanin.”

Source: Cocoon Center

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).

NiacinamideKey activeEffect: HighIs 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~2.4–2.9%

Ascorbic acidUnder-dosedEffect: HighThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging~0.1–0.15%

Anti-aging

5 ingredients credited for this claim

Strong support

What the product description says

“Its formula contains hyaluronic acid, which improves skin elasticity and reduces wrinkles, and allantoin, which promotes skin regeneration.Its Fusion Fluid texture melts on the skin.Tested under dermatological control. Waterproof.”

Source: Cocoon Center

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: tetrapeptide-30.

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.

Tetrapeptide-30Key activeEffect: Medium~0.15–0.25%

Ascorbyl palmitateEffect: Low, below effective doseBeing 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.~0.1–0.15%

Anti-blemish

Not advertised by the brand · 2 ingredients credited for this claim

Strong support

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.

AllantoinEffect: Low, below effective doseHelps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated~0.2–0.4%

Can it cause trouble?

Irritancy

1 strong irritant: Parfum

Medium risk

We flagged 13 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Alcohol denat.Produces temporary toning effect. Can help dissolve other ingredients or preserve productsHigh~2–2.4%est.

ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.2–0.4%est.

Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~0.1–0.15%est.

OctocryleneA 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" sunscreenMedium~3.7–4.5%est.

Butyl methoxydibenzoylmethaneAvobenzone. 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.Medium~1.9–2.4%est.

Bis-ethylhexyloxyphenol methoxyphenyl triazineTinosorb 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.Medium~1.4–1.7%est.

Peg-30 dipolyhydroxystearateHelps oil and water mix togetherMedium~0.6–0.9%est.

Tocopheryl acetateA 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.Medium~0.25–0.5%est.

Disodium edtaStabilizes the product formulationMedium~0.2–0.4%est.

EthylhexylglycerinA preservativeMedium~0.2–0.4%est.

Peg-8Used to create a nice product consistencyMedium~0.2–0.35%est.

Ascorbyl palmitateBeing 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.Medium~0.1–0.15%est.

Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.05–0.1%est.

Comedogenic

Clean of flagged comedogenic ingredients

None flagged

Edit

Cheaper Alternatives

Similar formulations, better price

e.l.f. SUNTOUCHABLE! WHOA GLOW SPF 30

79% match

$14.00

grüum skyda Daily Defence Face Lotion SPF50

78% match

$11.90

View all alternatives

User reviews

Would you recommend?

No community reviews yet.

Be the first — your take helps the next person decide.

Write a review · ~30s

Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%

Formula

Irritation risk: Low

Plain old water

More about Water

Dibutyl adipate~6.6–8%

Formula

Irritation risk: Low

Works for

Moisturizing

Helps soften the upper layer of the skin and create a nice product consistency

More about Dibutyl adipate

Cyclopentasiloxane~4.5–5.4%

Key active

Irritation risk: Low

Works for

MoisturizingMattifying

A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin

More about Cyclopentasiloxane

Octocrylene~3.7–4.5%

UV filterKey activeIrritant · medium

Irritation risk: Medium

Works for

Sun protection

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 Octocrylene

Niacinamide~2.4–2.9%

Hero · Moisturizing, Anti-blemish

Irritation risk: Low

Works for

Anti-agingEvens skin toneAnti-blemishMoisturizingReduces irritationAntibacterialAnti-inflammatoryReduces redness

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 Niacinamide

Alcohol denat.~2–2.4%

Irritant · high

Irritation risk: High

Produces temporary toning effect. Can help dissolve other ingredients or preserve products

More about Alcohol denat.

Titanium dioxide~2.1–2.5%

UV filterKey active

Irritation risk: Low

Works for

Sun protection

Works as a UV filter when used in high concentrations. It is photostable and is effective mostly against the UVB light, with some protection in the UVA range. In small concentrations, used for its ability to improve the color of cosmetic products. Is usually well tolerated by the skin

More about Titanium dioxide

Butyl methoxydibenzoylmethane~1.9–2.4%

UV filterKey activeIrritant · medium

Irritation risk: Medium

Works for

Sun protection

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 methoxydibenzoylmethane

Cyclohexasiloxane~1.2–1.5%

Formula

Irritation risk: Low

Works for

Moisturizing

A silicone that serves as an emollient. Helps create a nice non-greasy feels

More about Cyclohexasiloxane

Bis-ethylhexyloxyphenol methoxyphenyl triazine~1.4–1.7%

UV filterKey activeIrritant · medium

Irritation risk: Medium

Works for

Sun protection

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 triazine

Butylene glycol~0.7–1%

Formula

Irritation risk: Low

Works for

Moisturizing

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 glycol

Peg-30 dipolyhydroxystearate~0.6–0.9%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Helps oil and water mix together

More about Peg-30 dipolyhydroxystearate

Glycerin~0.55–0.8%

Key active

Irritation risk: Low

Works for

Moisturizing

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 Glycerin

Nylon-12~0.6–0.9%

Formula

Irritation risk: Low

Used to create a nice product consistency

More about Nylon-12

Peg-10 dimethicone~0.5–0.75%

Key active

Irritation risk: Low

Works for

Moisturizing

A silicone that works to soften the upper layer of the skin and reduce its water loss

More about Peg-10 dimethicone

Sodium chloride~0.45–0.7%

Formula

Irritation risk: Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride

Phenoxyethanol~0.45–0.65%

Formula

Irritation risk: Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol

Silica~0.5–0.75%

Formula

Irritation risk: Low

Used to absorb oil and can temporarily mattify skin

More about Silica

Dimethicone~0.4–0.65%

Key active

Irritation risk: Low

Works for

MoisturizingMattifying

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 Dimethicone

Resorcinol~0.3–0.5%

Formula

Irritation risk: Low

More about Resorcinol

Disteardimonium hectorite~0.3–0.5%

Formula

Irritation risk: Low

A type of clay that is used to thicken the product consistency

More about Disteardimonium hectorite

Panthenol~0.25–0.5%

Under-dosed

Irritation risk: Low

Works for

Reduces rednessMoisturizingReduces irritation

Helps attract water to the upper layer of the skin and can help improve skin barrier function

More about Panthenol

Tocopheryl acetate~0.25–0.5%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidation

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 acetate

Allantoin~0.2–0.4%

Under-dosed

Irritation risk: Low

Works for

Anti-inflammatoryMoisturizingReduces irritationReduces rednessAnti-blemishExfoliation

Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated

More about Allantoin

Glyceryl stearate~0.3–0.55%

Formula

Irritation risk: Low

Works for

CleansingMoisturizing

An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together

More about Glyceryl stearate

Parfum~0.2–0.4%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Disodium edta~0.2–0.4%

Irritant · medium

Irritation risk: Medium

Stabilizes the product formulation

More about Disodium edta

Ethylhexylglycerin~0.2–0.4%

Irritant · medium

Irritation risk: Medium

A preservative

More about Ethylhexylglycerin

Sodium hyaluronate~0.2–0.4%

Key active

Irritation risk: Low

Works for

Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate

Dimethiconol~0.25–0.45%

Key active

Irritation risk: Low

Works for

Moisturizing

A silicone that makes products more spreadable and keeps skin smooth. Helps to add gloss to skin and may visually fill in fine lines/wrinkles for short time

More about Dimethiconol

Peg-8~0.2–0.35%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Used to create a nice product consistency

More about Peg-8

Tocopherol~0.15–0.3%

Formula

Irritation risk: Low

Works for

Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

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 Tocopherol

Tetrapeptide-30~0.15–0.25%

Hero · Moisturizing

Irritation risk: Low

Works for

MoisturizingAnti-aging

More about Tetrapeptide-30

Ascorbyl palmitate~0.1–0.15%

Irritant · medium

Irritation risk: Medium

Works for

Anti-oxidationAnti-aging

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 palmitate

Ascorbic acid~0.1–0.15%

Under-dosedIrritant · high

Irritation risk: High

Works for

Anti-oxidationEvens skin toneAnti-aging

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid

Citric acid~0.05–0.1%

Irritant · medium

Irritation risk: Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid

Ingredient list view

Water, Dibutyl adipate, Cyclopentasiloxane, Octocrylene, Niacinamide, Alcohol denat., Titanium dioxide, Butyl methoxydibenzoylmethane, Cyclohexasiloxane, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Butylene glycol, Peg-30 dipolyhydroxystearate, Glycerin, Nylon-12, Peg-10 dimethicone, Sodium chloride, Phenoxyethanol, Silica, Dimethicone, Resorcinol, Disteardimonium hectorite, Panthenol, Tocopheryl acetate, Allantoin, Glyceryl stearate, Parfum, Disodium edta, Ethylhexylglycerin, Sodium hyaluronate, Dimethiconol, Peg-8, Tocopherol, Tetrapeptide-30, Ascorbyl palmitate, Ascorbic acid, Citric acid

Compare prices

Retailers ranked by price — lowest first.

Cocoon Center

≈ $24.22

Buy

Amazon UKPrice as of 10/3/2026 15:08 GMT

≈ $28.88

Buy

Affiliate links · prices updated regularly · As an Amazon Associate, WIMJ earns from qualifying purchases.

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.

Side-by-side comparison of this product against its closest alternatives
	ISDINFotoUltra 100 Active Unify Fusion Fluid SPF50+YOUR PRODUCT	RilatsilAK REPAIR SPF 100	e.l.f.SUNTOUCHABLE! WHOA GLOW SPF 30	grüumskyda Daily Defence Face Lotion SPF50
Match	—	82%	79%	78%
Price	$24.19	—	$14.00−$10.19	$11.90−$12.29
Shared key ingredients	—	10 of 14	7 of 14	8 of 14
Key difference	—	Bisabolol	Ethylhexyl Hydroxystearate	Uvinul T
Irritancy	Medium	Low	Low	Low
SPF	SPF 50	SPF 100	SPF 30	SPF 50
Drying alcohol	Contains drying alcohol	Contains drying alcohol	—	—
	View product	Shop	Shop	Shop

Cheaper alternatives? See how this stacks up against similar formulas.

We compare ingredient profiles across our catalog — pick the closest match for your budget.

Open dupe finder

Product summary

Based on the ingredients included, we believe that "ISDIN - FotoUltra 100 Active Unify Fusion Fluid SPF50+" 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. This product prevents early signs of aging by protecting against sun damage (all broad spectrum sunscreens do that).

Sunscreen filters

This is a "mixed" sunscreen in the sense that it uses both mineral and organic (so-called "chemical") sun filters. The organic filters in the product are: tinosorb s, avobenzone and octocrylene. As for the mineral filters, this sunscreen uses titanium dioxide.

Irritation risk

This moisturizer contains some common irritants, including those without 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.