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Primaderm signature technology · Sunscreen technology

Encapsulated Filters Technology

Sun filters in tiny beads, so they protect without sitting on your skin.

Primaderm wraps its chemical and mineral sun filters inside double cellulose spheres. They still catch the sun, but they never touch the skin directly: very high protection, gentle enough for sensitive skin, and light to wear.

SPF50+Broad spectrumSensitive skinLight, non-sticky
XpertSun Urban sunscreen surrounded by golden translucent spheres

In one minute

What it is

A way of building the sunscreen, not a single ingredient. Chemical and physical filters are enclosed in spheres of plant cellulose before they go into the formula.

What it does

The filters absorb and scatter UV as usual, but from inside their capsule. Less contact with the skin means less chance of irritation, and a lighter, more even finish.

Why it matters

Many people skip sunscreen because it stings, clogs or feels heavy. A sunscreen you actually want to wear every day protects far better than a stronger one left in the drawer.

Golden translucent spheres, the XpertSun key visual
The XpertSun™ key visual: filters inside golden spheres.

The idea, simply

Like putting the filters in tiny glass beads.

Imagine each sun filter sealed in a clear bead. Light still passes into the bead and is caught there, but the filter never sits directly on your skin or migrates into it.

That is what the double cellulose sphere does. The protection is the same SPF50+, broad-spectrum shield; what changes is how the skin experiences it: lighter, calmer, and comfortable under make-up.

Very high protection, minimal contact.

Illustration of a golden sphere cut open to show the filter inside
The double cellulose sphere, cut open: the filter is held inside.

A little science, made simple

What the label's "SPF50+" and "UVA" actually promise.

XpertSun™ meets the strictest European standard for very high protection. In plain words:

SPF50+Very high protection against UVB, the burning rays
UVA in a circleUVA protection at least one third of the SPF: the ageing rays are covered too
Broad spectrumProtection extends past 370 nm, the benchmark for full-spectrum cover
Ocean-friendlyA formula Primaderm describes as ocean-friendly

What the studies show

Very high protection, by the standard.

SPF 50+
UVB protection
the highest category on the label
≥ 1/3
UVA-PF relative to SPF
the European broad-spectrum rule
≥ 370 nm
Critical wavelength
full-spectrum benchmark

Ingredient studies as reported in Primaderm's technical documentation (in vivo and in vitro); not tests of the finished product. Cosmetic effect on the look and feel of the skin; individual results vary.

Who it's for

If you've given up on sunscreen because of how it feels.

  • Sensitive or reactive skin that stings with ordinary SPF
  • Oily or combination skin that wants a matte, non-clogging finish
  • Daily wear under make-up, in the office and in the car
  • Anyone who wants a sunscreen that is gentler on the ocean, too
Woman holding XpertSun Urban sunscreen against her forehead
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