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IS
Ishizawa-Lab

Shigaisen Yohou Smooth UV Gel SPF 45 PA+++

SPF 45 · PA+++ Invisible No white cast — chemical/hybrid filters that disappear on skin. JP Japan jp-domestic Formulation variant: jp-domestic. Region-specific reformulations are tracked as separate products.

Octinoxate + orange peel oil and dense botanical/extract blend raise irritation risk; gel base is wearable but old-school UV-B filter drags health score.

CHEM Chemical filters Chemical filters — Organic filters absorb UV. Cosmetically elegant; filter selection matters. ((· BS Broad spectrum Broad spectrum — Blocks UVA + UVB across the full sun-damage spectrum. F F-FREE Fragrance-free Fragrance-free — No added fragrance or perfume — lower irritation risk for reactive skin. A A-FREE Alcohol-free Alcohol-free — No drying short-chain alcohols (denatured / SD alcohol).
65.3
Composite
Composite score · independent
Ranks #1142 of 1558 in the current catalogue. Octinoxate + orange peel oil and dense botanical/extract blend raise irritation risk; gel base is wearable but old-school UV-B filter drags health score.
Composite is a weighted blend: UV 25% · Modernity 10% · Sensitivity 15% · Environment 10% · Elegance 15% · Health 25%.
Verdict Should you buy it?

A gel with octinoxate and Uvinul A Plus reaching SPF 45 PA+++, layered with arbutin, dipotassium glycyrrhizate, and a dense botanical blend. Citrus peel oil combined with octinoxate raises the irritation risk for reactive skin.

Pros
  • Alcohol-free with no added parfum or fragrance
  • Uvinul A Plus adds modern UVA-1 coverage
  • Dipotassium glycyrrhizate and aloe for soothing
  • Alpha-arbutin for brightening support
  • Silica gives a smooth, semi-matte feel
Cons
  • Contains citrus peel oil, a known sensitizer
  • Octinoxate is a dated UVB filter
  • Dense botanical and extract blend raises irritation risk

Who it's for: Suits non-reactive skin wanting a brightening-focused daily gel; skip if you react to essential oils or prefer octinoxate-free formulas.

01 Score breakdown
UV protection How well the product blocks UVA + UVB across the spectrum at the stated SPF/PA. 86
Filter modernity Penalises legacy filters (octinoxate, oxybenzone); rewards photostable next-gen filters. 75
Sensitivity safety Risk for reactive skin — fragrance, alcohol, known sensitisers. 45
Reef / env. safety Reef toxicity, biodegradability of UV filters and surfactants. 65
Cosmetic elegance Spread, finish, white-cast, comfort on skin. 62
Health safety Endocrine concerns, systemic absorption signals across the formula. 55
02 Composition · key UV filters 2 filters resolved
UVB 290–320nm UVB (290–320nm) — covered UVA-II 320–340nm UVA-II (320–340nm) — covered UVA-I 340–400nm UVA-I (340–400nm) — covered
Octinoxate Legacy Older organic filter. Photostable in combination; some literature concerns.
Uvinul A Plus Modern Next-gen photostable filter; low irritation profile.
03 At-a-glance facts
Protection
Filter type Mineral filters (zinc oxide, titanium dioxide) sit on skin and reflect UV. Chemical filters absorb UV. Hybrid blends both.
Chemical
Broad spectrum Protects across both UVA and UVB ranges. UVA causes aging and deeper damage; UVB causes burns.
Yes
Formulation & feel
Texture How the formula feels at application — milk, gel, cream, spray, stick, essence, lotion, powder, or cushion.
Gel
Finish How the formula looks on skin 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' differs — may contain masking fragrance. Botanical oils still scent.
Yes
Alcohol-free No drying short-chain alcohols (alcohol denat., SD alcohol, ethanol). Does not refer to fatty alcohols like cetyl or stearyl alcohol, which are emollients.
Yes
04 Full ingredient list (INCI) 27 ingredients
MODERN FILTER 1 LEGACY FILTER 1 MINERAL FILTER 0 ADDED FRAGRANCE 0 NATURAL FRAGRANCE 2 ALCOHOL 0 WATCH 0 ACTIVE 3
Water· Ethylhexyl Methoxycinnamate Octinoxate — endocrine-disruption literature. ·Silica· Diethylamino Hydroxybenzoyl Hexyl Benzoate Uvinul A Plus — modern photostable UVA filter. · Citrus Aurantium Dulcis Peel Oil Essential / botanical oil — releases scent compounds (terpenes, aldehydes) naturally. Marketed as "natural" but still a recognised source of contact sensitivity. ·Dipotassium Glycyrrhizate·Alpha-arbutin· Citrus Paradisi Fruit Extract Essential / botanical oil — releases scent compounds (terpenes, aldehydes) naturally. Marketed as "natural" but still a recognised source of contact sensitivity. ·Saxifraga Sarmentosa Extract· Sodium Hyaluronate Hyaluronic acid — humectant. · Sodium Acetylated Hyaluronate Hyaluronic acid — humectant. ·Scutellaria Baicalensis Root Extract·Morus Alba Root Bark Extract·Chamomilla Recutita Flower Extract·Malpighia Glabra Fruit Extract·Hydrolyzed Collagen·Aloe Barbadensis Leaf Extract·Silver·Platinum·Cellulose Gum·Sodium Bicarbonate·Polyglyceryl-10 Laurate·Potassium Hydroxide·Carbomer· Tocopherol Vitamin E — antioxidant. ·Butylene Glycol·Phenoxyethanol
Source: brand-published INCI. Last verified 19 Jun 2026. Show in detail
01 Water Water
02 Ethylhexyl Methoxycinnamate LEGACY FILTER Octinoxate — endocrine-disruption literature.
03 Silica Silica
04 Diethylamino Hydroxybenzoyl Hexyl Benzoate MODERN FILTER Uvinul A Plus — modern photostable UVA filter.
05 Citrus Aurantium Dulcis Peel Oil NATURAL FRAGRANCE Essential / botanical oil — releases scent compounds (terpenes, aldehydes) naturally. Marketed as "natural" but still a recognised source of contact sensitivity.
06 Dipotassium Glycyrrhizate Dipotassium Glycyrrhizate
07 Alpha-arbutin Alpha-Arbutin
08 Citrus Paradisi Fruit Extract NATURAL FRAGRANCE Essential / botanical oil — releases scent compounds (terpenes, aldehydes) naturally. Marketed as "natural" but still a recognised source of contact sensitivity.
09 Saxifraga Sarmentosa Extract Strawberry Geranium Extract
10 Sodium Hyaluronate ACTIVE Hyaluronic acid — humectant.
11 Sodium Acetylated Hyaluronate ACTIVE Hyaluronic acid — humectant.
13 Morus Alba Root Bark Extract Mulberry Root Bark Extract
14 Chamomilla Recutita Flower Extract Chamomile Flower Extract
15 Malpighia Glabra Fruit Extract Acerola Fruit Extract
16 Hydrolyzed Collagen Hydrolyzed Collagen
17 Aloe Barbadensis Leaf Extract Aloe Vera Leaf Extract
18 Silver Silver
19 Platinum Platinum
20 Cellulose Gum Cellulose Gum
21 Sodium Bicarbonate Sodium Bicarbonate
22 Polyglyceryl-10 Laurate Polyglyceryl-10 Laurate
23 Potassium Hydroxide Potassium Hydroxide
24 Carbomer Carbomer
25 Tocopherol ACTIVE Vitamin E — antioxidant.
26 Butylene Glycol Butylene Glycol
27 Phenoxyethanol Phenoxyethanol