BlueShield Spirulina Barrier Serum
30 ml / 1 fl. oz. — one blue drop is your daily dose.
A daily-defence serum built around phycocyanin, the blue pigment from spirulina. It delivers antioxidant-rich care that helps protect stressed urban skin from environmental stress, supports the skin barrier, and helps skin feel hydrated, calmer and more comfortable — with a visible blue drop that proves the active is really there.
- What it helps with. Barrier support · daily hydration · defence from pollution & environmental stress.
- How to use. After cleansing, morning and/or evening, press one drop over face and neck. Follow with moisturiser (and SPF in the day).
- Good to know. Fragrance-free · vegan · cruelty-free · non-staining · suitable for stressed, sensitive-feeling skin.
- Price. €27.90 — launch offer €24.90.
Skincare you can trust — because you can see it.
BlueShield is a modern skincare company built on one belief: the best proof of an active ingredient is being able to see it. We were founded by a small team of chemists and skincare makers tired of shelves full of “clean beauty” promises with no way to tell which were real.
So we started with a single, visible active — phycocyanin, the naturally blue pigment from spirulina — and built the BlueShield Spirulina Barrier Serum around it. An antioxidant-rich formula for stressed urban skin, where every drop carries a blue tint you can watch disappear into your skin. One blue drop, a daily shield.
A brand built on proof, not promises
Visible proof
We design products where the benefit is something you can see and feel — starting with the blue drop.
Science-forward
Formulas built around real, understandable ingredients — clearly explained, never overclaimed.
Clean & conscious
Fragrance-free, vegan and cruelty-free, in packaging designed to protect both the formula and the planet.
Made for real routines
Simple, premium products designed to fit the daily lives of skincare-conscious people, not to overwhelm them.
Skincare you can see working.
Antioxidant care and barrier support are usually invisible — you can’t see them working. BlueShield changes that. Spirulina gives us phycocyanin, a naturally blue pigment that carries antioxidant care and gives every drop its signature colour.
From algae to a visible active
Spirulina
Nutrient-rich microalgae, the source.
Phycocyanin
The blue pigment — the visible hero.
Antioxidant care
Helps neutralise daily stress.
Skin barrier support
Skin feels calmer and shielded.
Function first, premium by design.
Phycocyanin is light-sensitive. The tinted cobalt-glass bottle helps protect it, so the serum you use on day 30 is as fresh as day one.
Visible proof
The blue pigment is the signal that the active is really there — no invisible claims.
Light-protective
Cobalt glass shields the pigment from the light that would otherwise degrade it.
Proof, not promises.
Affordable hydrators keep it cheap but ask you to trust invisible claims. Luxury biotech serums charge a premium for the same invisibility. BlueShield sits in between — a mid-premium serum where the benefit is something you can actually see.
Visible
The blue drop proves the active is really there — you watch it work, then vanish.
Mid-premium
Above mass-market hydrators, below luxury biotech — value without compromise.
Clean & honest
Fragrance-free, vegan, cruelty-free — a transparent formula, no vague claims.
Built for social
The blue drop is the most shareable moment in skincare — made for your feed.
Green is deliberately absent.
Spirulina is algae — but our hero isn’t the plant, it’s the blue phycocyanin pigment. So the whole brand is cobalt, navy and white. No green. No greenwashing.