{"product_id":"tiam-pore-minimizing-21-serum","title":"Pore Minimizing 21 Serum","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA genuinely high-active pore serum from TIAM — and one of the rare consumer skincare products with a niacinamide concentration most brands don't even attempt. The headline is 20% niacinamide. For context, most niacinamide serums on the market sit at 4–10%, and 5% is already considered \"clinical-grade.\" This delivers four times that concentration, paired with 1% Zinc PCA (a sebum-regulating ingredient that limits acne-causing bacteria) and willow bark water (a natural source of BHA that gently lifts dead cells and clears pore congestion). Just 12 ingredients in total, TIAM's signature minimalist approach.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe brand's clinical study claims visible results in 21 days of daily use (hence the \"21\" in the name). The texture is lightweight, slightly viscous, watery rather than thick — absorbs cleanly without that draggy serum feel and layers nicely under SPF and makeup. Sodium hyaluronate hydrates, allantoin soothes, and the formula skips fragrance, alcohol, and all common allergens. Worth flagging: at 20%, this is genuinely powerful, so the brand recommends starting gradually — a patch test first, then 2–3 nights a week, building to daily as the skin adjusts.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Oily, combination, or blackhead-prone skin with visibly enlarged pores — also a great pick for anyone wanting to step up from a basic 5% niacinamide serum and address pores, sebum, and uneven tone in one product. \u003cstrong\u003eNote:\u003c\/strong\u003e High niacinamide concentration; patch test first, introduce gradually.\u003c\/p\u003e","brand":"TIAM","offers":[{"title":"Default Title","offer_id":49664594673912,"sku":"5351494963","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/5804\/4152\/files\/23_4a1adfe6-76a5-4986-8ceb-f3e712e36b0d.png?v=1782961036","url":"https:\/\/kbeautyrealgems.com\/products\/tiam-pore-minimizing-21-serum","provider":"K-Beauty Real Gems","version":"1.0","type":"link"}