Short answer

SPF appears in both markets, but Japan commonly adds a PA grade for UVA protection while US labels use FDA Broad Spectrum wording after the required test. Water-resistance wording also follows regional rules. For US use, read the complete US Drug Facts and directions rather than translating only the front label. [1][2][4][5]

What it is

Sun-protection labels summarize tested performance under defined methods. SPF primarily describes UVB-related protection. Japan’s PA grades communicate UVA protection, while US products that pass FDA requirements may use Broad Spectrum labeling. [1][3][4][5]

Why people want it after Japan

Japanese shelves show formats and front-label terms that may not appear the same way in the US. The useful task is to decode the tested label, directions, water-resistance statement, and regional regulatory status without turning the comparison into a beauty or treatment claim. [1][2][4]

01

What to check before buying

01

SPF

Treat SPF as a tested label value, not a simple number of safe hours. Japan guidance describes it as a measure of UVB-related protection; current FDA guidance likewise describes SPF primarily in relation to UVB protection. [1][3][4][5]

02

UVA wording

Japan uses PA grades from one to four plus signs. In the US, Broad Spectrum wording is reserved for products that pass the FDA broad-spectrum test. [3][1][4][5]

03

Water resistance

Japan’s current voluntary standard uses UV water-resistance star labeling tied to 40- or 80-minute testing. US labels use water resistant with 40 or 80 minutes and may not say waterproof. [2][4]

04

Directions

Application amount, even coverage, rubbing, water, and reapplication affect real use. Follow the directions on the exact product sold for the market. [1][3][4]

05

Regional label

A Japanese PA label does not replace the labeling and directions required for a sunscreen marketed in the United States. [1][5]

02

Japan vs overseas: what actually changes

UVA communication [1][3][4][5]

Japan context

Japan uses PA+, PA++, PA+++, or PA++++ as a UVA-protection grade.

Overseas context

US products that pass FDA’s test use Broad Spectrum SPF wording under the current order.

Buying decision

Do not treat PA and Broad Spectrum as identical front-label formats.

Water-resistance label [2][4]

Japan context

The JCIA standard uses Japanese UV water-resistance wording with one or two stars based on 40- or 80-minute testing.

Overseas context

FDA labels state water resistant for 40 or 80 minutes and prohibit waterproof or sweatproof claims.

Buying decision

Read the time claim and regional directions.

Regulatory presentation [1][2][4][5]

Japan context

Japanese cosmetic-industry standards govern SPF, PA, and UV water-resistance presentation.

Overseas context

FDA regulates US sunscreens as nonprescription drug products and the current order specifies their labeling.

Buying decision

For US purchase and use, verify the US-market label.

A good fit if

  • You can read the exact regional label and directions
  • The format and water-resistance time match the intended activity
  • You will use the US-market Drug Facts for a product marketed in the US

Pause if

  • You are relying only on a high front-label number
  • You interpret PA plus signs as a substitute for US Broad Spectrum labeling
  • You expect waterproof protection without reapplication

03

Choose the category, then the model

Product category

US-market Broad Spectrum sunscreen [4][5]

Good for: US buyers who want a product labeled under current FDA requirements

Tradeoff: The front label may not use Japan’s PA notation

Retail links coming later

Product category

Japan-market SPF and PA sunscreen [1][2][3]

Good for: Buyers specifically researching a Japanese regional label

Tradeoff: PA and Japanese water-resistance labeling must be interpreted separately from US requirements

Retail links coming later

This page may contain affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Links do not affect our editorial conclusions.

04

FAQ

Is PA++++ the same as Broad Spectrum?

They are different regional labeling systems. PA grades UVA protection in Japan; Broad Spectrum is US wording tied to FDA test requirements. [1][3][4][5]

Does SPF tell me how many hours a product works?

No. JCIA says SPF is not simply a duration, and both markets base SPF on defined testing. Follow the product directions and reapplication guidance. [1][4]

What does water resistant mean in the US?

US labels state 40 or 80 minutes when the product qualifies. FDA does not allow waterproof or sweatproof wording. [4]

05

Sources

Every source below was checked on . Product specifications can change; reopen the exact model document before buying.

  1. 紫外線編 and sunscreen Q&AJapan Cosmetic Industry Association · checked 2026-09-26Supports: SPF meaning, PA labeling, use directions, Japan label interpretation
  2. JCIA standards and notifications for SPF, PA, and UV water resistanceJapan Cosmetic Industry Association · checked 2026-09-26Supports: 40 and 80 minute test conditions, Japan UV water-resistance stars, label examples
  3. 紫外線を防ぐケア: SPF and PA explanationKao Corporation · checked 2026-09-26Supports: SPF describes UVB protection, PA describes UVA protection, PA four-grade scale, application guidance
  4. Tips to Stay Safe in the Sun: From Sunscreen to SunglassesUS Food and Drug Administration · checked 2026-09-26Supports: current consumer guidance, Broad Spectrum wording, 40 and 80 minute water resistance, prohibited waterproof and sweatproof wording, reapplication directions
  5. Final Administrative Order OTC000039: Sunscreen Drug ProductsUS Food and Drug Administration · checked 2026-09-26Supports: current sunscreen labeling requirements, Broad Spectrum test and wording, Water Resistant 40 and 80 minute wording, prohibited waterproof and sweatproof claims, directions