Japan vs US Sunscreen Labels and Formulas

This guide is based on regulatory and legal documents from JCIA, the FDA’s Federal Register, and Japan’s official law translation database, along with official product information. It is general shopping information, not legal or regulatory advice. Some links may be affiliate links; commissions do not affect what is included.

If you’ve bought a Japanese sunscreen through a US retailer and noticed the SPF or PA rating is missing, or different from what’s shown on the Japan-market version, it’s not a labeling mistake. The US and Japan run genuinely different systems for regulating and labeling sunscreen, and understanding the difference helps explain why packaging can look so inconsistent between the two markets.

Why This Gets Confusing

A single product, like our researched CANMAKE Mermaid Skin Gel UV (see our CANMAKE Mermaid Skin Gel UV review), can show SPF50+/PA++++ on its Japan-market packaging and no SPF or PA rating at all on its US packaging, per CANMAKE’s own sites. That’s not necessarily because the US version is a different formula, we don’t have confirmation either way, it’s because the two countries run separate regulatory systems, and a Japan-labeled claim isn’t automatically valid on US packaging.

How the US Regulates Sunscreen: GRASE and the OTC Monograph

In the US, sunscreen is regulated as an over-the-counter (OTC) drug by the FDA. We confirmed this directly from a Federal Register document FDA published: under the Federal Food, Drug, and Cosmetic Act, a sunscreen ingredient must be considered “generally recognized as safe and effective” (GRASE) under conditions laid out in a document called OTC Monograph M020. That monograph, not a single static approval list, is what currently governs which ingredients and conditions make a sunscreen legally marketable in the US without a separate drug application. M020 took its current form in 2020, established under the CARES Act.

How Japan Regulates Sunscreen: Two Legal Categories

Japan’s system works differently, and we read the relevant law directly rather than relying on a summary. Japan’s official government translation of its Act on Securing Quality, Efficacy and Safety of Products Including Pharmaceuticals and Medical Devices (commonly called the PMD Act) defines two categories relevant here: “quasi-drugs,” items with a mild, specifically recognized effect on the body (Article 2, paragraph 2), and “cosmetics,” items intended to clean, beautify, or maintain skin or hair with a mild effect on the body (Article 2, paragraph 3).

The law’s text, as we read it, doesn’t name sunscreen specifically within either category. Several firms that specialize in Japanese cosmetics compliance describe sunscreens as capable of being registered as either a cosmetic or a quasi-drug, depending on formulation and the claims a brand wants to make, we’re presenting that as their description rather than something we verified in the statute itself, and we wouldn’t conclude that Japanese sunscreens are mostly one or the other.

PA++++ and “Broad Spectrum”: Not the Same Kind of Information

Japan’s PA rating comes from a voluntary industry standard published by the Japan Cosmetic Industry Association (JCIA), not a government law, though JCIA’s own materials describe it as treated as a de facto standard by Japanese regulators. Reading JCIA’s published standard directly, the grading works like this: PA+ starts at a UVA protection factor (UVAPF) of 2, PA++ at 4, PA+++ at 8, and PA++++ at 16 or higher.

US packaging instead carries a “Broad Spectrum” claim. We can confirm this label exists and sits within the FDA’s OTC Monograph framework described above; we weren’t able to directly verify the specific testing mechanics behind how a product qualifies for it, so we’re not describing that method here. What we can say with confidence is that a JCIA-graded PA rating and a US “Broad Spectrum” claim come from two different kinds of bodies, an industry association versus a federal regulator, and shouldn’t be treated as directly interchangeable just because both relate to UVA protection.

A 2026 Update: A New UV Filter Gets Added in the US

One more piece of context is worth knowing if you’re comparing Japanese and US sunscreen formulas: the gap isn’t fixed. We confirmed directly from FDA’s own Federal Register filing that a final order (OTC000039) added bemotrizinol, known in ingredient lists as Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine and marketed as Tinosorb S, to OTC Monograph M020 at concentrations up to 6 percent. A product containing it can be GRASE if it meets the monograph’s conditions. FDA’s notice of this final order was published in the Federal Register on June 10, 2026; we weren’t able to confirm the order’s separate effective date, so we’re not assuming it matches the notice date.

This is relevant here because bemotrizinol is one of the filters in the ingredient lists we’ve reviewed for CANMAKE’s Mermaid Skin Gel UV and Bioré UV’s Aqua Rich Watery Essence (see our Bioré UV Aqua Rich Watery Essence review). An older US regulation from 1999 (21 CFR 352.10) lists 16 sunscreen active ingredients with concentration limits, and bemotrizinol isn’t among them, but that 1999 list is a historical document, not a live, complete account of everything currently permitted under the 2020-era OTC Monograph M020 system. We’re not treating the 1999 list as everything the US currently allows.

What This Looks Like on Real Packaging

Based on our existing research, CANMAKE’s Japan-market Mermaid Skin Gel UV shows SPF50+/PA++++; CANMAKE’s US site doesn’t show an SPF or PA number at all, citing US regulatory compliance. We weren’t able to confirm whether Bioré UV’s or Anessa’s overseas retail listings carry the same UV-filter formula as their current Japan-market versions. If the specific, labeled SPF and PA rating matters to your buying decision, prioritizing Japan-market packaging, and confirming with the seller which version you’re getting, is the more reliable approach based on what we could verify.

At a Glance

What We Still Don’t Know

We directly confirmed the core legal frameworks in both countries and JCIA’s PA scale, but several specifics remain open: whether OTC Monograph M020’s full ingredient list matches the 1999 regulation beyond bemotrizinol; whether 21 CFR Part 352 is formally superseded or simply inactive alongside M020; the exact testing mechanics behind the US “Broad Spectrum” claim; whether Japanese law specifically names sunscreen within its quasi-drug or cosmetic categories, as opposed to that being filled in by industry practice; and the effective date of the 2026 bemotrizinol order, separate from its Federal Register notice date. We’re leaving these open rather than guessing, and none of them changes the core point that the two countries run separate systems.

Our Verdict

• Prioritize Japan-market packaging if you want a JCIA-graded PA rating specifically, and you’re comfortable buying through an importer or reseller.
• Don’t assume a missing SPF/PA label means no protection if you’re looking at a US listing for a Japanese-brand sunscreen; it may reflect US labeling practice rather than a different formula, though we can’t confirm formula parity in every case.
• Check with the seller directly if you need certainty about whether you’re getting the Japan-market formula or a regionally adapted one.
• Treat a PA rating and a “Broad Spectrum” claim as different kinds of information if you’re comparing products across the two markets, not as interchangeable points on one scale.

Frequently Asked Questions

Does PA++++ mean a sunscreen is stronger than a US “Broad Spectrum” sunscreen?

Not something we can compare directly. PA++++ is a specific point on JCIA’s four-step industry scale (a UVA protection factor of 16 or higher). “Broad Spectrum” in the US comes from FDA’s separate OTC Monograph framework, and we haven’t independently verified its internal testing mechanics, so we can’t map a given “Broad Spectrum” product onto Japan’s PA scale.

Why doesn’t the US version of a Japanese sunscreen show SPF/PA?

Often because of US labeling practice, not necessarily a missing UV filter. Some brands remove the Japan-style SPF/PA claim from US packaging, per their own sites, while marketing what may be a related formula under US rules.

Is a sunscreen sold in Japan classified differently from one sold in the US?

Yes, the legal frameworks themselves differ: the US treats sunscreen as an OTC drug requiring GRASE status under FDA’s monograph system, while Japan’s law defines separate “quasi-drug” and “cosmetic” categories that several compliance sources (not verified by us against the statute directly) describe sunscreen as fitting into depending on formulation. We wouldn’t call either system stricter or better, they’re structured differently rather than simply more or less permissive.

Can I trust a US-market listing to have the same formula as the Japan version?

Not automatically. We found at least one confirmed case (CANMAKE) where the US listing doesn’t display the same SPF/PA information as the Japan version, and we weren’t able to confirm formula parity for our other researched products either. If it matters to you, ask the seller or prioritize Japan-market packaging.

Sources and limits

Core references include the JCIA PA/UVAPF standard, the FDA Federal Register notice, Japan’s official English translation of the PMD Act, and Cornell Law School’s historical mirror of 21 CFR 352.10. The Cornell page is historical and should not be read as a complete current US ingredient list. Product examples were checked against official CANMAKE, Bioré, and Anessa information. Last checked August 13, 2026.