ISDIN

ISDIN Eryfotona AK Fluid SPF100+

Name: ISDIN - Eryfotona AK Fluid SPF100+
Brand: ISDIN

SPF 100Efficacy90/100IrritancyMedium·4 UV filters

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Works for

1 of 1 advertised claim delivered

Sun protection

SPF 100 · 4 UV filters

Broad spectrum

SPF 100Broad spectrumMineral + chemical 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~4.8–5.8%

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~2.2–2.6%

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.~1.5–1.8%

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.~2–2.5%

~ 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.

Evens skin tone

Not advertised by the brand · 1 ingredient credited for this claim

Strong 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).

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~0.1–0.2%

Anti-aging

Not advertised by the brand · 3 ingredients credited for this claim

Strong 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.

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~0.2–0.35%

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.~0.1–0.2%

Moisturizing

Not advertised by the brand · 13 ingredients credited for this claim

Good support

This product can help soften the skin and reduce its moisture loss with emollients and occlusives: dimethicone, peg-10 dimethicone.

Keep in mind that this product does not contain effective ingredients to attract water to the upper layer of the skin. This is why an additional product with humectants like glycerin or hyaluronic acid can be helpful (apply it before this product for the best results).

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~0.55–0.85%

Peg-10 dimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that works to soften the upper layer of the skin and reduce its water loss~0.5–0.8%

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~3.2–4%

Plankton extractKey activeEffect: MediumCan help attract water to the upper layer of the skin~0.15–0.3%

Glyceryl stearate· EmollientEffect: LowAn emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together~0.35–0.6%

Dibutyl adipate· EmollientEffect: LowHelps soften the upper layer of the skin and create a nice product consistency~6.6–8.1%

Peg-8· HumectantEffect: LowUsed to create a nice product consistency~0.25–0.45%

Cyclohexasiloxane· EmollientEffect: LowA silicone that serves as an emollient. Helps create a nice non-greasy feels~1.3–1.6%

Dicaprylyl carbonate· EmollientEffect: LowHelps products spread more easily and works as an emollient to soften skin~2.4–3%

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~0.7–1.1%

PanthenolUnder-dosedEffect: HighHelps attract water to the upper layer of the skin and can help improve skin barrier function~0.25–0.4%

LecithinEffect: Low, below effective doseUsed mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin~0.2–0.4%

Can it cause trouble?

Irritancy

1 strong irritant: Parfum

Medium risk

We flagged 14 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~0.25–0.45%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~0.1–0.2%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~4.8–5.8%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~2–2.5%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~1.5–1.8%est.

Peg-30 dipolyhydroxystearateHelps oil and water mix togetherMedium~0.6–0.95%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~0.3–0.6%est.

Disodium edtaStabilizes the product formulationMedium~0.25–0.45%est.

EthylhexylglycerinA preservativeMedium~0.25–0.45%est.

Peg-8Used to create a nice product consistencyMedium~0.25–0.45%est.

Plankton extractCan help attract water to the upper layer of the skinMedium~0.15–0.3%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~0.1–0.2%est.

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

Comedogenic

1 ingredient rated 2 or more on the 0–5 pore-clogging scale

1 flagged

These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.

IngredientFunctionRatingEst. amount

Plankton extractCan help attract water to the upper layer of the skin3/5~0.15–0.3%est.

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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~6.6–8.1%

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

Octocrylene~4.8–5.8%

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

Cyclopentasiloxane~3.2–4%

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

Dicaprylyl carbonate~2.4–3%

Formula

Irritation risk: Low

Works for

Moisturizing

Helps products spread more easily and works as an emollient to soften skin

More about Dicaprylyl carbonate

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~2.2–2.6%

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~2–2.5%

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~1.3–1.6%

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~1.5–1.8%

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~0.7–1.1%

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~0.6–0.95%

Irritant · medium

Irritation risk: Medium

Works for

Cleansing

Helps oil and water mix together

More about Peg-30 dipolyhydroxystearate

Nylon-12~0.65–1%

Formula

Irritation risk: Low

Used to create a nice product consistency

More about Nylon-12

Dimethicone~0.55–0.85%

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

Peg-10 dimethicone~0.5–0.8%

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~0.5–0.75%

Formula

Irritation risk: Low

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

More about Sodium chloride

Phenoxyethanol~0.45–0.7%

Formula

Irritation risk: Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol

Silica~0.5–0.8%

Formula

Irritation risk: Low

Used to absorb oil and can temporarily mattify skin

More about Silica

Disteardimonium hectorite~0.35–0.6%

Formula

Irritation risk: Low

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

More about Disteardimonium hectorite

Tocopheryl acetate~0.3–0.6%

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

Glyceryl stearate~0.35–0.6%

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~0.25–0.45%

Irritant · high

Irritation risk: High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum

Bisabolol~0.2–0.4%

Formula

Irritation risk: Low

Works for

Reduces irritationAnti-inflammatoryAnti-oxidation

An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties

More about Bisabolol

Disodium edta~0.25–0.45%

Irritant · medium

Irritation risk: Medium

Stabilizes the product formulation

More about Disodium edta

Ethylhexylglycerin~0.25–0.45%

Irritant · medium

Irritation risk: Medium

A preservative

More about Ethylhexylglycerin

Panthenol~0.25–0.4%

Under-dosed

Irritation risk: Low

Works for

MoisturizingReduces rednessReduces irritation

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

More about Panthenol

Peg-8~0.25–0.45%

Irritant · medium

Irritation risk: Medium

Works for

Moisturizing

Used to create a nice product consistency

More about Peg-8

Tocopherol~0.2–0.35%

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

Lecithin~0.2–0.4%

Formula

Irritation risk: Low

Works for

CleansingMoisturizing

Used mostly for creating emulsions - helping oil and water mix together. Helps soften the upper layer of the skin

More about Lecithin

Plankton extract~0.15–0.3%

Key activeComedogenic 3/5Irritant · medium

Irritation risk: Medium
Comedogenicity: 3/5

Works for

Moisturizing

Can help attract water to the upper layer of the skin

More about Plankton extract

Ascorbyl palmitate~0.1–0.2%

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~0.1–0.2%

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, Octocrylene, Cyclopentasiloxane, Dicaprylyl carbonate, Alcohol denat., Titanium dioxide, Butyl methoxydibenzoylmethane, Cyclohexasiloxane, Bis-ethylhexyloxyphenol methoxyphenyl triazine, Butylene glycol, Peg-30 dipolyhydroxystearate, Nylon-12, Dimethicone, Peg-10 dimethicone, Sodium chloride, Phenoxyethanol, Silica, Disteardimonium hectorite, Tocopheryl acetate, Glyceryl stearate, Parfum, Bisabolol, Disodium edta, Ethylhexylglycerin, Panthenol, Peg-8, Tocopherol, Lecithin, Plankton extract, Ascorbyl palmitate, Ascorbic acid, Citric acid

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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.

Side-by-side comparison of this product against its closest alternatives
	ISDINEryfotona AK Fluid SPF100+YOUR PRODUCT	grüumskyda Daily Defence Face Lotion SPF50	DermasenceSolvinea Med SPF 50+	AltruistSunscreen Fluid SPF50
Match	—	57%	57%	56%
Price	$24.85	$11.90−$12.95	—	$11.90−$12.95
Shared key ingredients	—	6 of 10	7 of 10	6 of 10
Key difference	—	Niacinamide	Butyrospermum Parkii Butter	Niacinamide
Irritancy	Medium	Low	Low	Low
SPF	SPF 100	SPF 50	SPF 50	SPF 50
Drying alcohol	Contains drying alcohol	—	—	—
	View product	Shop	Shop	Shop

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Product summary

We believe that "ISDIN - Eryfotona AK Fluid SPF100+" can provide reliable sun protection based on the ingredients listed. 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).

This moisturizer should also be hydrating enough to use without an additional moisturizer during the day. Like all broad-spectrum sunscreens, this product helps prevent early signs of aging.

Sunscreen filters

This sunscreen uses a mixture of both mineral and organic (so-called "chemical") UV 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 formulation includes some common irritants, including ingredients that do not provide 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.

Price

The product retails for 55.99A$ in Australia and from 18.80£ up to 20.33£ in the United Kingdom.

For a detailed price comparison: click here.

Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 7 studies and safety reviews.

1
Dimethicone as a protective ingredient in topical medicationsjaad.org
2
Final Report on the Safety Assessment of Dimethicone Copolyoljournals.sagepub.com
3
α-(-)-Bisabolol Reduces Pro-Inflammatory Cytokine Production and Ameliorates Skin Inflammationresearchgate.net
4
Skin moisturizing effects of panthenol-based formulationspdfs.semanticscholar.org
5
Safety Assessment of Panthenol, Pantothenic Acid, and Derivatives as Used in Cosmeticscir-safety.org
6
Vitamin E in dermatologyncbi.nlm.nih.gov
7
Vitamin E and Skin Healthlpi.oregonstate.edu

ISDINEryfotona AK Fluid SPF100+

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As an Amazon Associate, WIMJ earns from qualifying purchases.