IS
Ishizawa-Lab
Shigaisen Yohou Moisturizing UV Serum SPF 50+ PA++++
SPF 50+ · 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.
Light serum with octinoxate plus Uvinul A Plus and ceramides 2/3 — pleasant feel; orange oil and octinoxate cap sensitivity and health scores.
◐ 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).
74.5
Composite
Composite score · independent
Ranks #608 of 1558 in the current catalogue. Light serum with octinoxate plus Uvinul A Plus and ceramides 2/3 — pleasant feel; orange oil and octinoxate cap sensitivity and health scores.
Verdict Should you buy it?
A light fragrance-free serum with octinoxate and Uvinul A Plus, supported by ceramides 2, 3, and 62 plus 3-O-ethyl ascorbic acid. The feel is pleasant, but added citrus peel oil and octinoxate cap its sensitivity and filter modernity.
Pros
- Ceramides 2, 3, and 62 support the skin barrier
- Includes 3-O-ethyl ascorbic acid, a stable vitamin C
- Lightweight serum texture
- Fragrance-free and alcohol-free
- Hyaluronic acid and botanical soothing extracts
Cons
- Contains citrus peel oil, a potential sensitizer
- Octinoxate is a dated UVB filter
- UVA defense relies on a single modern filter
Who it's for: Suits dry skin wanting ceramide and vitamin C support alongside daily SPF; skip if you react to citrus essential oils.
01 Score breakdown
02 Composition · key UV filters 2 filters resolved
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.
Essence
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) 28 ingredients
MODERN FILTER 1 LEGACY FILTER 1 MINERAL FILTER 0 ADDED FRAGRANCE 0 NATURAL FRAGRANCE 2 ALCOHOL 0 WATCH 0 ACTIVE 5
Water· Ethylhexyl Methoxycinnamate Octinoxate — endocrine-disruption literature. ·Butylene Glycol· Diethylamino Hydroxybenzoyl Hexyl Benzoate Uvinul A Plus — modern photostable UVA filter. ·Pentylene Glycol·3-O-ethyl Ascorbic Acid· ceramide 62 Skin-barrier lipid. · Ceramide 2 Skin-barrier lipid. · Ceramide 3 Skin-barrier lipid. ·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 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· 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. ·Caprylic/Capric Triglyceride·Acrylates/C10-30 Alkyl Acrylate Crosspolymer·Hydrogenated Polyisobutene·Sodium Hydroxide· Tocopherol Vitamin E — antioxidant. ·Disodium Edta·Hdi/Trimethylol Hexyllactone Crosspolymer·Phenoxyethanol
Source: brand-published INCI. Last verified 19 Jun 2026. Show in detail
04 Diethylamino Hydroxybenzoyl Hexyl Benzoate MODERN FILTER Uvinul A Plus — modern photostable UVA filter.
07 ceramide 62 ACTIVE Skin-barrier lipid.
11 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.
20 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.