{"id":894,"date":"2026-01-26T16:58:28","date_gmt":"2026-01-26T07:58:28","guid":{"rendered":"https:\/\/www.facelabo.co.jp\/en\/blog\/?p=894"},"modified":"2026-02-17T16:55:04","modified_gmt":"2026-02-17T07:55:04","slug":"episode-2-the-skin-barrier-function-of-tea-shield-our-proprietary-sustainable-cosmetic-ingredient","status":"publish","type":"post","link":"https:\/\/www.facelabo.co.jp\/en\/blog\/2026\/01\/26\/episode-2-the-skin-barrier-function-of-tea-shield-our-proprietary-sustainable-cosmetic-ingredient\/","title":{"rendered":"Episode 2: The Skin Barrier Function of Tea Shield\u00ae\u2014 Our Proprietary Sustainable Cosmetic Ingredient"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

In the episode 1,<\/a> we introduced Tea Shield\u00ae<\/sup><\/sup>, a sustainable and functional cosmetic ingredient derived from tea seed pericarp.
One of the key features of Tea Shield\u00ae<\/sup><\/sup> is its ability to support skin barrier function.
In this episode, we will take a closer look at this barrier function and the scientific evidence behind the efficacy of tea seed pericarp extract.


1\uff0eWhat Happens When the Skin Barrier Function Weakens?
<\/strong>The skin’s barrier function protects against external irritants and retains moisture. When this function weakens, skin becomes more sensitive to external irritants, potentially resulting in dryness, itching, or redness, and may lead to skin irritation and inflammation.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n<\/p>\n

2\uff0eSkin Barrier Function Efficacy with Tea Seed Pericarp Extract<\/strong><\/p>\n\n\n

\"\"<\/figure>\n\n\n

When Tea Seed Pericarp Extract was added to a 3D-cultured skin model with weakened barrier function, a significant increase in TEER value, an indicator of skin barrier function, was observed. This confirmed the skin barrier function improvement of Tea Seed Pericarp Extract.<\/p>\n

3\uff0eTea Shield\u00ae<\/sup><\/span>: Key Properties<\/strong>
Tea Shield\u00ae<\/sup><\/span> is a next-generation functional ingredient that offers both sustainability and skin barrier-enhancing effects.<\/span><\/p>\n

\u3000\u3000\u25cf\u00a0 \u00a0Sustainable
<\/strong>\u3000\u3000\u25cf\u00a0 \u00a0Patent-pending
<\/strong>\u3000\u3000\u25cf\u00a0 \u00a0Pesticide-free
<\/strong>\u3000\u3000\u25cf\u00a0 \u00a0Ethanol and preservative-free
<\/strong>\u3000\u3000\u25cf\u00a0 \u00a0Over 99%<\/strong>*\u00a0natural origin content (including water)
<\/strong>\u3000\u3000\u25cf\u00a0 24-hour human closed-patch tested
<\/strong>\u3000\u3000\u25cf\u00a0 Repeated insult patch test (RIPT) verified
<\/strong>
Facelabo offers skincare formulations containing Tea Shield\u00ae<\/sup><\/span>.<\/span>\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/span><\/p>\n

\uff0aCalculated according to ISO 16128<\/span><\/h6>\n

In the next episode, we will introduce skincare formulations containing Tea Shield\u00ae<\/sup><\/span><\/span>.<\/p>\n

For OEM\/ODM inquiries or sample requests for skincare formulations containing Tea Shield\u00ae<\/sup><\/span><\/span>, please contact us.<\/p>\n

\u21d2CONTACT<\/a><\/p>\n


<\/span>
<\/span><\/p>\n

\u00a0<\/span><\/p>\n

\u00a0<\/strong><\/p>\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

In the episode 1, we introduced Tea Shield\u00ae, a sustainable and functional cosmetic ingredient derived from tea seed pericarp.One of the key features of Tea Shield\u00ae is its ability t […]<\/p>\n","protected":false},"author":1,"featured_media":896,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,16],"tags":[],"class_list":["post-894","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-j-beauty","category-tea-shield","clearfix"],"_links":{"self":[{"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/posts\/894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/comments?post=894"}],"version-history":[{"count":16,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/posts\/894\/revisions"}],"predecessor-version":[{"id":948,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/posts\/894\/revisions\/948"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/media\/896"}],"wp:attachment":[{"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/media?parent=894"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/categories?post=894"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.facelabo.co.jp\/en\/blog\/wp-json\/wp\/v2\/tags?post=894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}