Most skincare actives are named for what they do. This one is named for where it lives — and the two turn out to be the same thing.
If you’ve seen “pink microalgae” or Dunaliella salina on an ingredient list and wondered what it’s doing there, the short version is: it’s a skin-structure active — studied for firmness, tone, and glycation — that happens to have an unusually good origin story. The longer version is worth telling, because with this ingredient the biology is the explanation.
01 What It Is
Dunaliella salina is a single-celled green microalga — a halophile, meaning it thrives in extreme salt. It’s found in hypersaline lagoons and salt flats around the world: the pink evaporation ponds of Torrevieja in Spain, the Camargue in France, salt lakes across North Africa and Australia. These are some of the harshest, brightest, saltiest environments on the planet, and this alga is one of the very few living things that flourishes in them.
You may have seen it described as “pink microalgae.” That pink is the point — and the survival mechanism behind it is what makes the ingredient interesting.
02 The Survival Story
A salt lagoon under strong sun is a punishing place to be a cell. The light is intense, the salinity is extreme, and there’s nowhere to hide. Most organisms simply can’t cope with that combination of solar and oxidative stress.
Dunaliella salina copes by making its own protection. Under stress it produces large amounts of carotenoids — the antioxidant pigments that give the alga (and its lagoons) their characteristic colour. These molecules absorb light and neutralise the reactive species that intense sun generates, letting the cell survive conditions that would destroy it otherwise.
That is the whole reason it’s in skincare. The reactive species this alga defends against — the ones intense light generates — are the same kind that drive oxidative damage and glycation in skin over time. An organism that evolved a portable system to neutralise them is a logical place to look for an active that targets those same processes. The extract captures that chemistry, and the supplier’s clinical work (§04) measured what it does with it.
03 Colorless Carotenoids: The Useful Detail
Here’s the technical point that makes this ingredient genuinely clever, and it’s one most write-ups skip.
Carotenoids are wonderful antioxidants, but most of them are intensely coloured — think of beta-carotene’s deep orange. That colour is a problem in a facial serum: it tints the formula and can tint the skin. Which is why, for all their antioxidant power, coloured carotenoids are hard to use at meaningful levels in leave-on skincare.
Dunaliella salina offers a way around this. It produces two colorless carotenoids — phytoene and phytofluene — which are the biosynthetic precursors to the coloured ones. Because their molecular structure absorbs light in the UV range rather than the visible range, they carry antioxidant activity without the orange tint. You get the benefit of a carotenoid in a form that stays clear in an oil serum. That’s the specific reason this extract works where others don’t.
They’re also notably stable — resistant to degradation in ways that some other antioxidants (vitamin C among them) are not. In a formula that pairs the two, that stability is complementary: one antioxidant that acts readily, one that holds up over time.
04 What the Studies Show
The specific ingredient we use is IBR-SolAge™, a supercritical-CO₂ extract of Dunaliella salina from Lucas Meyer Cosmetics by Clariant. The figures below come from the supplier’s own research on the ingredient — they describe what the extract did in their studies, not what any finished YANNARA serum will do for your skin. We keep that distinction deliberately, because it’s the honest one.
In a 56-day clinical study (1% in a gel-cream, applied twice daily, split-face versus placebo, on 25 participants across a range of skin tones with regular sun exposure), the ingredient was reported to support, versus placebo:
| What was measured | Reported at 56 days |
|---|---|
| Skin elasticity | +14% |
| Skin firmness | +7% |
| Skin roughness | reduced up to 10% |
| Wrinkle count | −32% |
| Skin evenness (graded) | +17%, with 96% of participants responding |
| Skin glycation (AGE Reader) | significantly reduced |
Earlier laboratory (ex vivo) work explored why: the extract was shown to reduce the formation of advanced glycation end-products, support the skin’s own antioxidant response, and lower markers of inflammation. That anti-glycation angle is the thread connecting this ingredient to skin structure — and it’s worth understanding on its own terms.
Glycation is the slow reaction in which sugar stiffens the collagen and elastin that hold skin’s structure. It’s one of the processes we formulate with in mind. Read our full explainer on skin glycation →
05 Will It Clog Pores?
A fair question for anyone acne-prone, since this is often delivered in an oil base. The Dunaliella salina extract itself is not considered comedogenic — it’s used at low percentages and isn’t a pore-clogging material.
The more useful answer, though, is that comedogenicity is a property of the whole formula, not one ingredient. What matters for breakouts is the carrier oils and the overall composition. In both Arawon and Banayad, the extract sits within oil systems chosen for lighter, lower-comedogenic materials — Banayad in particular is built for oily and combination skin — but if you’re highly breakout-prone, the sensible move with any new oil serum is to patch test and introduce it gradually, regardless of a single ingredient’s rating.
06 How We Use It
We formulate with Dunaliella salina (as IBR-SolAge™, at 1%) in two of our serums — Arawon (ToneReset™) and Banayad (Gentle Pure Veil™). In both, it plays the same role: a colorless, stable active that works on skin structure — tone, firmness, and glycation — through the carotenoid chemistry the alga evolved. What differs is the company it keeps.
Our tone-focused oil serum pairs stabilized, oil-soluble vitamin C (THDC) and 1% bakuchiol with the colorless-carotenoid extract of Dunaliella salina. Three antioxidants and tone actives, chosen to support the look of even, resilient skin.
Explore Arawon →Our oil-balancing serum for oily and combination skin. Most products for oily skin stop at oil regulation. Banayad adds what that category usually skips: a clinically-studied antioxidant and anti-glycation active — the same Dunaliella salina extract, at the same 1% — alongside willow bark and licorice, in a fast-absorbing dry-oil finish. Oil control is the start, not the whole formula.
Explore Banayad →Here’s what we’ll stand behind: a colorless, stable extract with a documented profile across elasticity, evenness, and anti-glycation — used at its studied 1% level — is a considered choice in both a tone serum and an oil-balancing one. The figures above are the ingredient’s, measured in its own studies; we cite them at that level because that’s the honest one. That depth, in formulas most of the category keeps simple, is part of what you’re paying for. Engineered, not blended.