Kosas Soulgazer Intensifying Gel Eyeliner
by Kosas · makeup
Editor's Take
Kosas nails the glide and smudge-proof set, but Cyclopentasiloxane, polyethylene, and ceresin make the clean branding harder to swallow than the eyeliner itself.
Four-pillar formula scores
- Performance: 8.2 / 10
- Innovative Ingredients: 7.5 / 10
- Clean Standards: 8.7 / 10
- Formula Sustainability: 4.5 / 10
The Verdict
On the eye, this is a strong performer: Cyclopentasiloxane supplies glide, Trimethylsiloxysilicate locks down wear, and borosilicate gives the finish dimension. The quick set and pigment payoff justify the performance pitch without turning everyday use into a safety drama. The trade-off is environmental, since persistent silicone, polyethylene, and petroleum-derived ceresin undercut the clean branding and leave sustainability well behind efficacy. Worth it for luminous, smudge-resistant definition, with no green halo attached.
Is Kosas Soulgazer Intensifying Gel Eyeliner clean?
DARE scores Kosas Soulgazer Intensifying Gel Eyeliner by Kosas 8.7 / 10 on Clean Standards, the human-health pillar of the Formulation Architecture Model™. That reading comes from the published INCI list read as a system — preservative, fragrance and surfactant choices in context — not from flagging single ingredients in isolation.
What are the key ingredients in Kosas Soulgazer Intensifying Gel Eyeliner?
The formula leads with Sodium Hyaluronate, Ethylhexyl Palmitate, Copernicia Cerifera Wax/Cire de carnauba, Trihydroxystearin, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Ethylene/Propylene Copolymer. DARE reads the full INCI list below in order, so position and pairing shape how each ingredient contributes under Performance and Innovative Ingredients.
How does DARE score Kosas Soulgazer Intensifying Gel Eyeliner?
Under the Formulation Architecture Model™, Kosas Soulgazer Intensifying Gel Eyeliner by Kosas scores Performance 8.2 / 10, Clean Standards 8.7 / 10, Innovative Ingredients 7.5 / 10, and Formula Sustainability 4.5 / 10. Each pillar is scored from the finished formula rather than from isolated ingredient flags.
Full INCI list
Sodium Hyaluronate, Ethylhexyl Palmitate, Copernicia Cerifera (Carnauba) Wax/Cire de carnauba, Trihydroxystearin, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Ethylene/Propylene Copolymer, Phenoxyethanol \ +/-: CI 77499 (Iron Oxide), CI 77510 (Ferric Ammonium Ferrocyanide)\
Last updated September 19, 2026