{"id":1129,"date":"2025-07-24T18:41:58","date_gmt":"2025-07-24T09:41:58","guid":{"rendered":"https:\/\/www.yamate.clinic\/en\/20240705\/"},"modified":"2026-04-16T12:08:05","modified_gmt":"2026-04-16T03:08:05","slug":"20240705","status":"publish","type":"post","link":"https:\/\/www.yamate.clinic\/en\/20240705\/","title":{"rendered":"What Do SPF and PA Mean in Sunscreen?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Understand SPF &amp; PA and choose the right sunscreen<\/h2>\n\n\n\n<p>In summer, UV exposure can increase quickly even in daily life. Sunscreen is essential, but labels like <strong>SPF<\/strong> and <strong>PA<\/strong> can be confusing. Here is a simple explanation and practical tips.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. What is SPF?<\/h3>\n\n\n\n<p>SPF (Sun Protection Factor) mainly reflects protection against UVB rays, which can burn skin and cause redness. A higher number means stronger UVB protection, but remember the real effect depends on how much product you apply and how often you reapply.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. What is PA?<\/h3>\n\n\n\n<p>PA indicates protection against UVA rays, which penetrate deeper and can contribute to wrinkles and sagging over time. More + signs mean stronger UVA protection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. How to choose sunscreen<\/h3>\n\n\n\n<ul><li>For daily commuting: SPF30\/PA+++ is often enough.<\/li><li>For beaches\/mountains or strong sun: SPF50\/PA++++ is recommended.<\/li><li>Choose textures you can use daily (gel, milk, stick, spray, etc.)<\/li><li>Check whether it is easy to remove and whether it suits sensitive skin.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Reapply!<\/h3>\n\n\n\n<p>Even with high SPF, sunscreen can wear off due to sweat, oil, or friction (mask, clothing, wiping your face). Reapplying is key. Stick-type products are handy for reapplication without dirtying your hands.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p>At Yokohama Yamate Clinic, we also provide care for sun-exposed skin and support you in maintaining healthy, clear skin. Please feel free to visit us.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/yyc.b4a.clinic\" target=\"_blank\" rel=\"noreferrer noopener\">Book a counseling session<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/page.line.me\/705oeslk?oat_content=url&amp;openQrModal=true\" target=\"_blank\" rel=\"noreferrer noopener\">Contact us on LINE<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Understand SPF &amp; PA and choose the right sunscreen In summer, UV exposure can increase quickly even in dai [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":786,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/posts\/1129"}],"collection":[{"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/comments?post=1129"}],"version-history":[{"count":3,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/posts\/1129\/revisions"}],"predecessor-version":[{"id":2164,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/posts\/1129\/revisions\/2164"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/media\/786"}],"wp:attachment":[{"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/media?parent=1129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/categories?post=1129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yamate.clinic\/en\/wp-json\/wp\/v2\/tags?post=1129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}