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NEEDLY Youth Core Sun Serum
NEEDLY

Youth Core Sun Serum

SPF 50+ · PA++++ Invisible No white cast — chemical/hybrid filters that straight-up disappear on skin. South Korea global Formulation variant: global. Region-specific reformulations are tracked as separate products.

Modern filters (EHT, Mexoryl SX, DHHB, BEMT) with ectoin; added fragrance limits sensitivity score. Serum texture is elegant.

◐ CHEM Chemical filters Chemical filters — Organic filters absorb UV. Cosmetically elegant, but filter choice matters. ((· BS Broad spectrum Broad spectrum — Blocks UVA + UVB — covers the whole sun-damage spectrum. A A-FREE Alcohol-free Alcohol-free — No drying short-chain alcohols (denatured / SD alcohol).
Where to buy it
YesStyle US In stock
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84.0
Composite
Composite score · independent
Ranks #186 of 1558 in the current catalogue. Modern filters (EHT, Mexoryl SX, DHHB, BEMT) with ectoin; added fragrance limits sensitivity score. Serum texture is elegant.
Composite is a weighted blend: UV 25% · Modernity 10% · Sensitivity 15% · Environment 10% · Elegance 15% · Health 25%. That's the recipe.
01 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. 100
Sensitivity safety Risk for reactive skin — fragrance, alcohol, and known sensitisers. 62
Reef / env. safety Reef toxicity plus how biodegradable the UV filters and surfactants are. 100
Cosmetic elegance Spread, finish, white-cast, and how it actually feels on skin. 78
Health safety Endocrine concerns and systemic absorption signals across the whole formula. 72
02 Composition · key UV filters 5 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
Uvinul T 150 Modern Next-gen photostable filter; low irritation profile.
Ecamsule (Mexoryl SX) Modern Next-gen photostable filter; low irritation profile.
Uvinul A Plus Modern Next-gen photostable filter; low irritation profile.
Parsol SLX Modern Next-gen photostable filter; low irritation profile.
Bemotrizinol Modern Next-gen photostable filter; low irritation profile.
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.
Essence
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.
No
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
Verdict Is it worth it?

A Korean essence SPF 51 / PA++++ pairing Mexoryl SX, Uvinul T 150, Uvinul A Plus, and Tinosorb S with niacinamide, adenosine, and ectoin. Added Fragrance lifts skin-feel but lowers the sensitivity profile.

Pros
  • Five modern EU filters give strong broad-spectrum cover
  • Niacinamide, adenosine, and ectoin support the barrier
  • Lightweight essence texture suits layering
  • Alcohol-free formula
Cons
  • Fragrance is listed in the INCI
  • Filter set unavailable in the US market
  • Polysilicone-15 finish may pill under makeup for some
  • Limited skin-barrier lipids beyond sodium hyaluronate

Who it's for: Buyers who can access EU-filter sunscreens and prioritize a thin essence texture, accepting added fragrance.

04 Full ingredient list (INCI) 32 ingredients
MODERN FILTER 5 LEGACY FILTER 0 MINERAL FILTER 0 ADDED FRAGRANCE 1 NATURAL FRAGRANCE 0 ALCOHOL 0 WATCH 0 ACTIVE 3
Water·Dibutyl Adipate·Butylene Glycol· Ethylhexyl Triazone Uvinul T 150 — high-efficiency UVB filter. · Terephthalylidene Dicamphor Sulfonic Acid Ecamsule (Mexoryl SX) · Niacinamide Vitamin B3 — barrier + brightening. ·Tromethamine·C11-13 Isoalkane· Diethylamino Hydroxybenzoyl Hexyl Benzoate Uvinul A Plus — modern photostable UVA filter. ·Methyl Trimethicone· Polysilicone-15 Parsol SLX ·Cetearyl Olivate·1‚2-Hexanediol· Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine Tinosorb S — broad-spectrum, very photostable. ·Triazine (pending review)·Poly C10-30 Alkyl Acrylate·Sorbitan Olivate·Dimethicone/Vinyl Dimethicone Crosspolymer·Sodium Polyacryloyldimethyl Taurate·Hydroxyacetophenone· Fragrance Synthetic fragrance blend — a common irritant. Composition is a trade secret; can include dozens of compounds. Avoid if your skin is reactive. ·Carbomer·Dehydroxanthan Gum· Sodium Hyaluronate Hyaluronic acid — humectant. ·Sodium Stearoyl Glutamate·Methylpropanediol·Polyether-1·Polyacrylate Crosspolymer-6· Adenosine Smoothing active. ·Ectoin·Quercus Acuta Fruit Extract·Castanea Crenata (Chestnut) Shell ExtractIngredients subject to change at manufacturer's discretion. For the most complete and up-to-date list of ingredients (pending review)
Source: brand-published INCI. Last verified 2026. Show in detail
01 Water Water
02 Dibutyl Adipate Dibutyl Adipate
03 Butylene Glycol Butylene Glycol
04 Ethylhexyl Triazone MODERN FILTER Uvinul T 150 — high-efficiency UVB filter.
05 Terephthalylidene Dicamphor Sulfonic Acid MODERN FILTER Ecamsule (Mexoryl SX)
06 Niacinamide ACTIVE Vitamin B3 — barrier + brightening.
07 Tromethamine Tromethamine
08 C11-13 Isoalkane
09 Diethylamino Hydroxybenzoyl Hexyl Benzoate MODERN FILTER Uvinul A Plus — modern photostable UVA filter.
10 Methyl Trimethicone Methyl Trimethicone
11 Polysilicone-15 MODERN FILTER Parsol SLX
12 Cetearyl Olivate Cetearyl Olivate
13 1‚2-Hexanediol 1,2-Hexanediol
14 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine MODERN FILTER Tinosorb S — broad-spectrum, very photostable.
15 Triazine Pending review
16 Poly C10-30 Alkyl Acrylate Poly C10-30 Alkyl Acrylate
17 Sorbitan Olivate Sorbitan Olivate
18 Dimethicone/Vinyl Dimethicone Crosspolymer Dimethicone/Vinyl Dimethicone Crosspolymer
19 Sodium Polyacryloyldimethyl Taurate Sodium Polyacryloyldimethyl Taurate
20 Hydroxyacetophenone Hydroxyacetophenone
21 Fragrance ADDED FRAGRANCE Synthetic fragrance blend — a common irritant. Composition is a trade secret; can include dozens of compounds. Avoid if your skin is reactive.
22 Carbomer Carbomer
23 Dehydroxanthan Gum Dehydroxanthan Gum
24 Sodium Hyaluronate ACTIVE Hyaluronic acid — humectant.
25 Sodium Stearoyl Glutamate Sodium Stearoyl Glutamate
26 Methylpropanediol Methylpropanediol
27 Polyether-1
28 Polyacrylate Crosspolymer-6 Polyacrylate Crosspolymer-6
29 Adenosine ACTIVE Smoothing active.
30 Ectoin Ectoin
31 Quercus Acuta Fruit Extract
32 Castanea Crenata (Chestnut) Shell ExtractIngredients subject to change at manufacturer's discretion. For the most complete and up-to-date list of ingredients Pending review