Head to head
ISDIN Fotoprotector Fusion Water SPF 50 vs Neutrogena Hydro Boost Water Gel SPF 50
Same comparison whichever way you searched it: Neutrogena Hydro Boost Water Gel SPF 50 vs ISDIN Fotoprotector Fusion Water SPF 50.
The bottom lineISDIN Fotoprotector Fusion Water SPF 50 and Neutrogena Hydro Boost Water Gel SPF 50 land in much the same place on performance, so value decides it: Neutrogena Hydro Boost Water Gel SPF 50 does the same job for less.
Which should you pick?
Pick Fotoprotector Fusion Water SPF 50 if
- dark spots, dullness or an uneven tone are your focus
- fine lines and firmness are the goal
Pick Hydro Boost Water Gel SPF 50 if
- plump, lasting hydration is what you want
- you want the more affordable option
What each delivers
Side by side
| Fotoprotector Fusion Water SPF 50 | Hydro Boost Water Gel SPF 50 | |
|---|---|---|
| Type | Sunscreen | Sunscreen |
| Key actives | Tinosorb S, Avobenzone, Vitamin C (LAA) | Avobenzone, Glycerin, Octocrylene |
| Texture | Finish varies by batch and region, so check matte-vs-dewy before committing if that matters to you. | Finish varies by batch and region, so check matte-vs-dewy before committing if that matters to you. |
| Fragrance | Contains fragrance | Contains fragrance |
| Fungal-acne safe | Not likely | Not likely |
| Pregnancy | No flagged actives | No flagged actives |
| Ingredients | 29 listed | 28 listed |
| Price | ~€24 | ~€18 |
What's in one but not the other
The two labels share 5 of the 52 ingredients between them. The actives are where they part company.
What each one adds acts on On top of the skin, The dermis, The stratum corneum for ISDIN Fotoprotector Fusion Water SPF 50 and The stratum corneum, On top of the skin for Neutrogena Hydro Boost Water Gel SPF 50. That is the layer each is understood to act on, not how deep it travels.
Only in Fotoprotector Fusion Water SPF 50
Both share
Only in Hydro Boost Water Gel SPF 50
Where each label stops telling you the dose
Ingredients are listed in order of how much is inside, but only down to 1%. Below that the brand may list them in any order it likes, so the bottom of a label is a set, not a ranking. These two stop being a ranking in very different places.
ISDIN Fotoprotector Fusion Water SPF 50
ordered for its first 66%
- 1Aqua (Water)
- 2Octocrylene
- 3Propanediol
- 4Butyl Methoxydibenzoylmethane
- 5Ethylhexyl Salicylate
- 6Polymethyl Methacrylate
- 7Dimethicone
- 8Phenylbenzimidazole Sulfonic Acid
- 9Polysilicone-15
- 10Propylene Glycol Dicaprylate/Dicaprate
- 11Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
- 12Silica
- 13Dimethicone/Vinyl Dimethicone Crosspolymer
- 141,2-Hexanediol
- 15Hydroxyacetophenone
- 16Polysorbate 60
- 17PEG-10 Dimethicone
- 18Sodium Hyaluronate
- 19Tocopheryl Acetate
- 20Xanthan Gum
- 21Caprylyl Glycol
- 22Parfum (Fragrance)
- 23Disodium EDTA
- 24PEG-8
- 25Tocopherol
- 26Tropolone
- 27Ascorbyl Palmitate
- 28Ascorbic Acid
- 29Citric Acid
10 of 29 sit below the line, marked by Xanthan Gum.
Neutrogena Hydro Boost Water Gel SPF 50
ordered for its first 46%
- 1Water
- 2Homosalate
- 3Octocrylene
- 4Octisalate
- 5Avobenzone
- 6Butyloctyl Salicylate
- 7Glycerin
- 8Alcohol Denat.
- 9Silica
- 10Caprylyl Methicone
- 11Aluminum Starch Octenylsuccinate
- 12Dimethicone
- 13Polyurethane-62
- 14Phenoxyethanol
- 15Pentylene Glycol
- 16Styrene/Acrylates Copolymer
- 17Sodium Acryloyldimethyltaurate/VP Crosspolymer
- 18Acrylates/Dimethicone Copolymer
- 19Fragrance
- 20Glyceryl Stearate
- 21Chlorphenesin
- 22Menthyl Lactate
- 23Tocopheryl Acetate
- 24Disodium EDTA
- 25Trideceth-6
- 26Hydrolyzed Hyaluronic Acid
- 27Sodium Hydroxide
- 28Blue 1
15 of 28 sit below the line, marked by Phenoxyethanol. Including what it is sold on: Hydrolyzed hyaluronic acid.
Below the line is not too little to work: ceramides, retinoids and peptides all act far under a percent. It means the position stops carrying information. Where the line falls is inferred from the first ingredient whose whole job is done at a fraction of a percent, so it is a close read of the label rather than a number from the formula sheet.
The molecule doing the work
Better for…
- Dark spots & uneven toneFotoprotector Fusion Water SPF 50
- Fine lines & firmnessFotoprotector Fusion Water SPF 50
- Dryness & dehydrationHydro Boost Water Gel SPF 50
Neutrogena Hydro Boost Water Gel SPF 50 is the cheaper of the two (~€18 vs ~€24).
Ready to pick one?
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Common questions
Is ISDIN Fotoprotector Fusion Water SPF 50 or Neutrogena Hydro Boost Water Gel SPF 50 better for dark spots & uneven tone?
For dark spots & uneven tone, ISDIN Fotoprotector Fusion Water SPF 50 is the stronger pick by our read of the two formulas. ISDIN Fotoprotector Fusion Water SPF 50 and Neutrogena Hydro Boost Water Gel SPF 50 land in much the same place on performance, so value decides it: Neutrogena Hydro Boost Water Gel SPF 50 does the same job for less.
Which is cheaper, ISDIN Fotoprotector Fusion Water SPF 50 or Neutrogena Hydro Boost Water Gel SPF 50?
Neutrogena Hydro Boost Water Gel SPF 50 is the cheaper of the two (~€18 vs ~€24).
Can I use ISDIN Fotoprotector Fusion Water SPF 50 and Neutrogena Hydro Boost Water Gel SPF 50 together?
They are both sunscreens, so you would normally pick one rather than layer both in the same step. You can keep both and alternate them (morning and night, or on different days) if you like variety, but you do not need two.
What the scene shows
The cross-section at the top of this page is not decoration and not a diagram of the skin in general: it places the molecules these two are sold on at the layer each is understood to act on. ISDIN Fotoprotector Fusion Water SPF 50 is placed by Tinosorb S (on top of the skin), Avobenzone (on top of the skin), Vitamin C (LAA) (the dermis). Neutrogena Hydro Boost Water Gel SPF 50 is placed by Avobenzone (on top of the skin), Glycerin (the stratum corneum), Octocrylene (on top of the skin). A layer is where an ingredient does its work, never how deep it travels, and never a claim about how well it works.
Compare it with…
All 11 comparisons
- Fotoprotector Fusion Water SPF 50 vs Beauty of Joseon Relief Sun: Rice + Probiotics SPF50+
- Fotoprotector Fusion Water SPF 50 vs Round Lab Birch Juice Moisturizing Sun Cream
- Fotoprotector Fusion Water SPF 50 vs Supergoop! Unseen Sunscreen SPF 50
- Fotoprotector Fusion Water SPF 50 vs La Roche-Posay Anthelios UVMune 400 Invisible Fluid SPF50+
- Fotoprotector Fusion Water SPF 50 vs CeraVe Hydrating Mineral Sunscreen Face Lotion SPF 30
- Fotoprotector Fusion Water SPF 50 vs Bioré UV Aqua Rich Watery Essence SPF50+
- Hydro Boost Water Gel SPF 50 vs Beauty of Joseon Relief Sun: Rice + Probiotics SPF50+
- Hydro Boost Water Gel SPF 50 vs Round Lab Birch Juice Moisturizing Sun Cream
- Hydro Boost Water Gel SPF 50 vs Supergoop! Unseen Sunscreen SPF 50
- Hydro Boost Water Gel SPF 50 vs La Roche-Posay Anthelios UVMune 400 Invisible Fluid SPF50+
- Hydro Boost Water Gel SPF 50 vs Bioré UV Aqua Rich Watery Essence SPF50+