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kier� Airy Sun Stick
kier�

Airy Sun Stick

SPF 50+ · PA++++
Our score 85.6 / 100

Octocrylene and chamomile flower water add modest tolerance concerns without listed parfum or ethanol. Silicone elastomers and powders may offset waxy residue; wear and clinical safety are unverified.

Invisible No white cast — chemical/hybrid filters that straight-up disappear on skin. Sensitive & baby fragrance-free, low-irritant, baby-safe gentle formulas. South Korea
03 The facts, at a glance
Protection
Filter type Mineral filters (zinc oxide, titanium dioxide) sit on skin and reflect UV. Chemical filters absorb UV. Hybrid runs both.
Chemical
Broad spectrum Covers both UVA and UVB. UVA drives aging and deeper damage; UVB gives you burns.
Yes
Formulation & feel
Texture How it feels going on — milk, gel, cream, spray, stick, essence, lotion, powder, or cushion.
Stick
Finish How it looks once dry: matte, natural, dewy, or glowy.
Natural
Tinted Adds sheer pigment (iron oxides) that masks the white cast common to mineral filters and gives a skin-tone finish.
No
fragrance-free No synthetic perfume added. Not FDA-defined in the US; the EU requires 'Parfum' + the 26 named allergens on the label. 'Unscented' is different — it can hide masking fragrance. Botanical oils still scent.
Yes
Alcohol-free No drying short-chain alcohols (alcohol denat., SD alcohol, ethanol). Doesn't mean fatty alcohols like cetyl or stearyl — those are emollients.
Yes
Where to buy it
YesStyle US In stock
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85.6
Composite score · independent
Ranks #803 of 1759 in the current catalogue. Octocrylene and chamomile flower water add modest tolerance concerns without listed parfum or ethanol. Silicone elastomers and powders may offset waxy residue; wear and clinical safety are unverified.
Composite is a weighted blend: UV 25% · Modernity 10% · Sensitivity 15% · Environment 10% · Elegance 15% · Health 25%. That's the recipe.
The score breakdown
UV protection How hard it blocks UVA + UVB across the spectrum at the stated SPF/PA. 100
Filter modernity Dings legacy filters (octinoxate, oxybenzone); rewards photostable next-gen ones. 50
Sensitivity safety Risk for reactive skin — fragrance, alcohol, and known sensitisers. 82
Reef / env. safety Reef toxicity plus how biodegradable the UV filters and surfactants are. 85
Cosmetic elegance Spread, finish, white-cast, and how it actually feels on skin. 82
Health safety Endocrine concerns and systemic absorption signals across the whole formula. 90
02 Composition · key UV filters 4 filters resolved
UVA-I 340–400nm UVA-I (340–400nm) — covered UVA-II 320–340nm UVA-II (320–340nm) — covered UVB 290–320nm UVB (290–320nm) — covered
Octocrylene Legacy Older organic filter. Photostable in combination; some literature concerns.
Homosalate Legacy Older organic filter. Photostable in combination; some literature concerns.
Octisalate Legacy Older organic filter. Photostable in combination; some literature concerns.
Avobenzone Legacy Older organic filter. Photostable in combination; some literature concerns.
04 Full ingredient list (INCI) 36 ingredients
MODERN FILTER 0 LEGACY FILTER 5 MINERAL FILTER 0 ADDED FRAGRANCE 0 NATURAL FRAGRANCE 0 ALCOHOL 0 WATCH 0 ACTIVE 4
Dimethicone·Synthetic Wax·Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer·Cetyl Ethylhexanoate· Octocrylene Octocrylene — degrades to benzophenone over time. · Homosalate Homosalate — legacy UVB filter; endocrine literature. ·Methyl Methacrylate Crosspolymer·Dibutyl Adipate· Butyloctyl Salicylate Salicylate-class booster; supports avobenzone. · Ethylhexyl Salicylate Octisalate — older filter; well-tolerated. · Butyl Methoxydibenzoylmethane Avobenzone — UVA filter, needs stabilisation. ·Pentylene Glycol·Polyglyceryl-4 Oleate·Helianthus Annuus Seed Oil·Polyglyceryl-6 Oleate·Polyhydroxystearic Acid·Methylpropanediol·Persea Gratissima Oil· Ethylhexylglycerin Humectant — the workhorse hydrator. ·Caprylyl Glycol·Glycine Soja Oil· Tocopherol Vitamin E — antioxidant. ·Steareth-30·Lactobacillus Ferment Lysate·Butyrospermum Parkii Butter Extract·Bixa Orellana Seed Oil·Water·Sodium Guaiazulene Sulfonate· Panthenol Vitamin B5 — soothing humectant. ·Butylene Glycol·1,2-Hexanediol·Anthemis Nobilis Flower Water· Madecassoside Centella — calming, repair. ·Asiaticoside·Asiatic Acid·Madecassic Acid
Source: brand-published INCI. Last verified 2026. Show in detail
01 Dimethicone Dimethicone
02 Synthetic Wax
03 Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer
04 Cetyl Ethylhexanoate Cetyl Ethylhexanoate
05 Octocrylene LEGACY FILTER Octocrylene — degrades to benzophenone over time.
06 Homosalate LEGACY FILTER Homosalate — legacy UVB filter; endocrine literature.
07 Methyl Methacrylate Crosspolymer Methyl Methacrylate Crosspolymer
08 Dibutyl Adipate Dibutyl Adipate
09 Butyloctyl Salicylate LEGACY FILTER Salicylate-class booster; supports avobenzone.
10 Ethylhexyl Salicylate LEGACY FILTER Octisalate — older filter; well-tolerated.
11 Butyl Methoxydibenzoylmethane LEGACY FILTER Avobenzone — UVA filter, needs stabilisation.
12 Pentylene Glycol Pentylene Glycol
13 Polyglyceryl-4 Oleate
14 Helianthus Annuus Seed Oil Sunflower Seed Oil
15 Polyglyceryl-6 Oleate
16 Polyhydroxystearic Acid Polyhydroxystearic Acid
17 Methylpropanediol Methylpropanediol
18 Persea Gratissima Oil Avocado Oil
19 Ethylhexylglycerin ACTIVE Humectant — the workhorse hydrator.
20 Caprylyl Glycol Caprylyl Glycol
21 Glycine Soja Oil Soybean Oil
22 Tocopherol ACTIVE Vitamin E — antioxidant.
23 Steareth-30
24 Lactobacillus Ferment Lysate Lactobacillus Ferment Lysate
25 Butyrospermum Parkii Butter Extract Shea Butter Extract
26 Bixa Orellana Seed Oil
27 Water Water
28 Sodium Guaiazulene Sulfonate
29 Panthenol ACTIVE Vitamin B5 — soothing humectant.
30 Butylene Glycol Butylene Glycol
31 1,2-Hexanediol 1,2-Hexanediol
32 Anthemis Nobilis Flower Water
33 Madecassoside ACTIVE Centella — calming, repair.
34 Asiaticoside Asiaticoside
35 Asiatic Acid Asiatic Acid
36 Madecassic Acid Madecassic Acid