Medik8 Advanced Day Ultimate Protect SPF50+ Review

What is Medik8 Advanced Day Ultimate Protect SPF50+?

Medik8 Advanced Day Ultimate Protect SPF50+ is a broad-spectrum SPF50+, PA++++ daily moisturiser built around encapsulated photolyase, a light-activated enzyme technology, alongside squalane and multi-weight hyaluronic acid. It sits at the final step of a morning routine and uses a chemical UV filter system rather than a mineral one, positioned by Medik8 as its highest-protection daily SPF moisturiser.

Quick facts

Key ingredients, and what they're doing

The headline ingredient is encapsulated photolyase, an enzyme technology that Medik8 includes for its light-activated role in supporting skin's own repair processes after UV exposure. Photolyase enzymes occur naturally in plants and some micro-organisms, where they help repair UV-damaged DNA once exposed to visible light; skincare formulas typically encapsulate a plankton-derived version so it stays stable in the product and activates once applied. It's included here as a supporting technology alongside the sunscreen itself, not as a replacement for the SPF filters doing the primary protective work.

That protective work comes from a broad-spectrum chemical UV filter system, which is what delivers the SPF50+, PA++++ rating. Chemical filters work by absorbing UV radiation and converting it to heat at the skin's surface, rather than sitting on top of the skin reflecting it away the way mineral (physical) filters do — which is part of why this formula can stay lightweight and largely invisible across skin tones rather than leaving a white cast.

Alongside the sun protection, the formula includes:

• Squalane — a skin-identical lipid that helps support the skin barrier and gives the formula its non-greasy slip, without feeling heavy under make-up.
• Multi-weight Hyaluronic Acid — draws and holds moisture at different depths in the skin's surface, supporting the hydration side of the formula so it reads as a moisturiser rather than a purely functional sunscreen.
• Blueberry seed oil, marrubium vulgare extract and carnosine — included as part of what Medik8 frames as wider environmental-defence support, sitting alongside the core UV filter system rather than replacing it.

SPF50+ vs SPF 30 — which one do you need?

Medik8's SPF range spans SPF 30 formulas, such as Daily Radiance Vitamin C, through to this SPF50+ option. In practical terms, SPF50+ blocks a slightly higher proportion of UVB rays than SPF 30 when applied correctly and in sufficient quantity, so it can suit anyone who wants the highest baseline protection available — for example, those with a personal or family history of sun sensitivity, anyone spending long periods outdoors, or people who simply prefer not to think about the maths and want to default to the strongest option. If you'd rather have vitamin C built into a slightly lower SPF step, Daily Radiance Vitamin C may suit your routine better; if maximum broad-spectrum cover is the priority, Advanced Day Ultimate Protect is the stronger choice.

Texture and how it feels on skin

Advanced Day Ultimate Protect is formulated as a lightweight, fast-absorbing cream designed to leave an invisible finish across skin tones, without the white cast associated with some mineral sunscreens. It's built to sit comfortably under make-up as the last step of a morning routine, with a texture Medik8 positions closer to a moisturiser than a traditional sunscreen.

Is it fragrance-free?

No. This formula contains Parfum (fragrance), with Limonene, Linalool and Citral listed as allergen components. If you have fragrance sensitivities, a history of reacting to scented skincare, or a diagnosed skin condition, patch test before applying to your face and get in touch with our team if you'd rather discuss a fragrance-free SPF alternative.

Who it suits

Medik8 positions this as suitable for all skin types, including sensitive skin, and as an option for anyone who wants their highest-available broad-spectrum daily protection in a single lightweight step. It suits people who are comfortable with a fragranced, chemical-filter formula; anyone who specifically needs fragrance-free or mineral SPF should look elsewhere in Medik8's SPF line, or speak to our team about alternatives.

If you're managing a specific skin concern — persistent redness, breakouts, or a diagnosed skin condition — the appearance-focused guidance on this page isn't a substitute for tailored advice. Our team can help you work out whether this fits your routine. If you're pregnant or breastfeeding, please contact our team for advice before use.

How to use it

1. Apply as the last step of your morning routine, after any vitamin C serum, moisturiser, or other AM actives you use.
2. Smooth evenly and generously over face and neck — sunscreens are formulated to work at a specific applied thickness, so a thin layer under-delivers the stated SPF.
3. Allow a moment to settle before applying make-up.
4. Reapply through the day as you would with any sunscreen, particularly with extended outdoor exposure.
5. Patch test first if you're new to the product or have a history of fragrance sensitivity.

Advanced Day Ultimate Protect vs Daily Radiance Vitamin C

Neither is objectively "better" — it depends on whether you want vitamin C folded into your SPF step, or your SPF step doing one job at the highest protection level Medik8 offers.

Things to know before you buy

• Comes in a 50ml pump format.
• Pricing sits within Medik8's SPF range — check the current price band on the product page rather than here, as pricing can change.
• Chemical, not mineral, filter system — if you specifically need a mineral sunscreen, this isn't that product.
• Contains fragrance (Parfum), with Limonene, Linalool and Citral as named allergen components.
• It's formulated as an AM step; it isn't designed to replace your PM moisturiser or any night-time actives.
• If you're pregnant or breastfeeding, please contact our team for advice before use.

Where this fits in a Medik8 routine

Medik8 groups its range around a CSA framework — vitamin C, retinal, and SPF — as the three pillars it recommends building a routine around. Advanced Day Ultimate Protect covers the "S" pillar at its highest available protection level, which is why it's positioned as the SPF step for anyone who wants maximum broad-spectrum cover rather than a lighter combination product. It's designed to sit after any vitamin C serum or moisturiser you use, and to work independently of whatever retinal-based product you're using in the evenings, since the two never need to overlap. For a round-up of how it compares with Medik8's other SPF moisturisers, see our best Medik8 SPF guide.

Because this is a chemical-filter, fragranced formula rather than a mineral, fragrance-free one, it's worth thinking about which end of that spectrum matters more for your skin before choosing it over another Medik8 SPF. Anyone with reactive or highly sensitised skin may want to start with a patch test, or speak to our team about which SPF in the range best matches their tolerance.

The verdict

Advanced Day Ultimate Protect SPF50+ earns its place as Medik8's highest-protection daily SPF moisturiser: a lightweight, fast-absorbing chemical sunscreen built around encapsulated photolyase, squalane and PA++++ broad-spectrum cover. It suits most skin types who are happy with a fragranced formula and want maximum daily protection in one step. If you need fragrance-free or mineral SPF specifically, or you'd rather have vitamin C built into your morning step, Daily Radiance Vitamin C or another product in the range may suit you better.