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What our customers have said

“No White Cast”

I tried this SPF for some time and concluded it’s a game changer. I always get burning sensations after applying SPF and after using this one it’s nothing like that. And no white stuff layering on the face. It's so good for daily use. And I loved it.

“Hydrating but NOT greasy”

I’m really impressed! It feels lightweight on the skin, absorbs quickly, and doesn’t leave a white cast. The formula is hydrating, but not greasy, making it comfortable for daily wear. It also sits well under makeup, which is a big plus. So far, no irritation or breakouts on my sensitive skin. Definitely a great option for everyday sun protection!

“Great SPF”

I love this SPF. It’s my new go-to for my face. My skin fully absorbs it quickly, leaving a slightly dewy and moisturised finish. Also It doesn't leave marks on my clothes which is amazing! It has a very lightweight texture, which is absolutely fantastic! It's the best I've had! I will continue using it!

“Absorbs really well”

I’ve been enjoying trying this daily for a few weeks now and I really like it. It's easy to apply and absorbs well. It gives my skin a glow and leaves it feeling moisturised. I had no issues with white cast and it worked really well under makeup. There's no fragrance, just a very light sunscreen scent that’s barely noticeable. My face felt protected from the sun. 

“Amazing light SPF”

Amazing light texture so light you can't even tell you are wearing it, not as some SPFs out there. Doesn't leave white marks like some SPFs do. It is not greasy or sticky and it is excellent under make up and doesn't affect make up in any way. I just love this.

“Amazing”

I love how quickly it absorbs into the skin and leaves it feeling smooth instead of greasy. It doesn’t leave any residue behind. I applied it under my makeup, and my skin felt nice and hydrated throughout the day.

30-Day money back guarantee

If it's not working for your skin, email us and we'll refund you.

We made these products to a standard we're confident in. The guarantee is because you're new and you don't know us yet.

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Real Consumers, Real Results Results within 4 weeks

Results based on an independent consumer perception trial consisting of 60 women over 4 weeks. Images have not been retouched.

Formulated With

Four-type hyaluronic acid complex
  • Sodium hyaluronate — regular HA, immediate surface hydration
  • Sodium acetylated hyaluronate — modified form, better penetration, more substantive
  • Sodium hyaluronate crosspolymer — creates moisture-retaining mesh, longer-lasting
  • Hydrolyzed sodium hyaluronate — low molecular weight, deeper delivery

This is the differentiator. Four forms working together is unusual for any skincare product, let alone a sunscreen.

UV filter system
  • Bis-ethylhexyloxyphenol methoxyphenyl triazine (Tinosorb S) — newer-generation photostable filter, broad-spectrum, stabilises other filters
  • Butyl methoxydibenzoylmethane (Avobenzone) — strong UVA protection
  • Ethylhexyl salicylate (Octisalate) — UVB protection
  • Phenylbenzimidazole sulfonic acid (Ensulizole) — water-soluble UVB filter, lighter feel

No Oxybenzone, no Octinoxate, no Homosalate. Modern combination chosen for photostability, broad-spectrum coverage, and strong safety profiles.

Niacinamide

Tone, texture, barrier support.

Panthenol

Pro-vitamin B5. Soothing, hydrating.

Cotton stem cell extract (Gossypium herbaceum callus culture)

Supports skin resilience.

Tocopheryl acetate

Vitamin E. Antioxidant backup for UV protection.

Glycerin + Propanediol

Hydration support.

From the founder

Accutane twice. Lasers in Korea. £300 creams. Sephora's highest loyalty tier. I've tried it all and most of it was fine. Fine is the problem. So I spent a year researching what actually works, writing product briefs so detailed one lab said they'd never seen anything like it. If a formula can't be smarter or better than what's already out there, we don't make it.

x Assel

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Second Skin SPF 50 FAQs

What is the full ingredient list (the INCI)

Aqua, Ethylhexyl Salicylate, C12-15 Alkyl Benzoate, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Phenylbenzimidazole Sulfonic Acid, Dicaprylyl Carbonate, Niacinamide, Silica, Butyl Methoxydibenzoylmethane, Sodium Polyacryloyldimethyl Taurate, Aminomethyl Propanol, Panthenol, Propanediol, Glycerin, Caprylyl Glycol, Sodium Stearoyl Glutamate, Tocopheryl Acetate, Gossypium Herbaceum Callus Culture, Caprylhydroxamic Acid, Xanthan Gum, Disodium EDTA, Pentylene Glycol, Citric Acid, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Ethylhexylglycerin

What type of skin is Second Skin SPF 50 designed for?

All skin types, including sensitive. Fragrance-free, no essential oils, no oxybenzone, no octinoxate, no homosalate. Dermatologist tested.

Is Second Skin SPF 50 reef-safe?

Yes. It contains no oxybenzone or octinoxate, the two filters most associated with reef damage.

Can I wear Second Skin SPF 50 under makeup?

Yes. It absorbs instantly with no white cast or grease. Apply, let it settle for a minute, then carry on with your routine. 86.6% of trial participants agreed it layers well under makeup.

How often do I need to reapply Second Skin SPF 50?

Every two hours in direct sun, or after swimming, sweating, or towel-drying. Sunscreen wears off through movement, contact, and sweat regardless of formula.

How much should I apply?

Two finger-lengths for face and neck. Most people apply about half that, which significantly reduces the actual SPF protection you get. Apply generously.

Is Second Skin SPF 50 a chemical or mineral SPF?

It's a chemical SPF using four modern filters. We chose chemical filters because they absorb invisibly with no white cast and no chalky finish, which is what makes daily wear realistic. Both chemical and mineral SPFs are safe and effective when properly formulated.

Will Second Skin SPF 50 sting my eyes?

No. The formula is fragrance-free and uses gentle, non-irritating filters. It's also dermatologist tested.

Is Second Skin SPF 50 pregnancy-safe?

We always recommend checking with your GP or midwife before changing your skincare routine during pregnancy. The formula contains no oxybenzone, which is the SPF filter most often flagged. Your doctor is the right person to advise.

Can I use Second Skin SPF 50 with retinoids?

Yes, and you should. Retinoids increase sun sensitivity, so SPF is non-negotiable the morning after. This one makes it easy.

What's the difference between Second Skin SPF 50 and the Overachiever Daily Moisturiser?

The Overachiever is your moisturiser: brightening, barrier support, antioxidant protection, hydration. Second Skin is your SPF: broad-spectrum sun protection with four-type hyaluronic acid. Moisturiser first, SPF on top in the morning. Two products, two minutes.

What does Innerbottle® mean?

The bottle has an airless balloon inside that collapses as you pump, leaving less than 1% of product behind. The outer bottle is easily recyclable with no rinsing required. Don't unscrew the pump until the bottle is empty.