{"product_id":"isntree-chestnut-bha-0-9-clear-toner-200ml-mirai-skin-isntree-chestnut-bha-0-9-clear-toner-200ml","title":"Isntree Chestnut BHA 0.9% Clear Toner 200ml","description":"\u003ch2\u003eIsntree Chestnut BHA 0.9% Clear Toner: A Clinically-Dosed BHA at the Exact Potency That Works\u003c\/h2\u003e\n\u003cp\u003eThis is Isntree's chemical exfoliating toner built around 0.9% salicylic acid (BHA) with chestnut extract as the brand's signature botanical pairing. Isntree is a Korean derm-focused brand that built its reputation on ingredient-led formulations with disclosed percentages, a refreshing contrast to brands that hide behind proprietary blends. 0.9% BHA is the sweet spot: high enough to genuinely clear pores and reduce congestion, low enough to use daily without irritation. At $45.53 for 200ml, this is priced like a premium exfoliating toner but delivers clinical-tier efficacy.\u003c\/p\u003e\n\u003cp\u003eKorean chestnut extract is the lesser-known botanical addition here. Chestnut has tannins that provide mild astringent and antioxidant support, complementing BHA's deeper pore work. The toner format delivers BHA in a leave-on watery solution, which outperforms wash-off cleansers with the same percentage because contact time is much longer.\u003c\/p\u003e\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eSalicylic acid is lipid-soluble, which means it penetrates sebum and works inside the pore rather than just on the surface. At 0.9% (just under the 2% OTC cap in the US), it clears congestion, reduces blackheads, and supports healing of existing breakouts. The chestnut extract provides antioxidant and mild astringent effects, and the toner base hydrates without stripping. Daily use reduces pore visibility and improves skin smoothness over 4 to 8 weeks.\u003c\/p\u003e\n\u003ch3\u003eWho It's For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOily and combination skin:\u003c\/strong\u003e Primary demographic for BHA's oil-clearing mechanism.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCongested pores and blackheads:\u003c\/strong\u003e Targets the actual mechanism of comedone formation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcne-prone skin:\u003c\/strong\u003e Prevents new breakouts and supports clearing existing ones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBHA daily users wanting a step up from Paula's Choice:\u003c\/strong\u003e Similar potency, Korean formulation sensibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExfoliating toner rotation:\u003c\/strong\u003e Daily BHA paired with weekly AHA or stronger treatments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolume: 200ml\u003c\/li\u003e\n\u003cli\u003ePrice: $45.53\u003c\/li\u003e\n\u003cli\u003eHero actives: 0.9% salicylic acid (BHA), chestnut extract\u003c\/li\u003e\n\u003cli\u003eTexture: watery clear toner, no stickiness\u003c\/li\u003e\n\u003cli\u003eFragrance: minimal\u003c\/li\u003e\n\u003cli\u003epH: approximately 3.5 to 4.0 (optimal for BHA activity)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eApply after cleansing, before serum. Saturate a cotton pad (or dispense into palms) and sweep over face, avoiding eye area. Can be used AM, PM, or both depending on tolerance. Start with PM only for 1 to 2 weeks, then add AM if no irritation occurs.\u003c\/p\u003e\n\u003cp\u003eWait 60 seconds before applying next step to let the BHA work at the correct pH. Always follow with moisturizer, and use SPF daily (BHA slightly increases sun sensitivity).\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eHow does this compare to Paula's Choice 2% BHA?\u003c\/h4\u003e\n\u003cp\u003ePaula's Choice is 2%, Isntree is 0.9%. Paula's Choice is the stronger workhorse, better for severely congested or acne-heavy skin. Isntree is gentler, better for daily maintenance and for users who found 2% too irritating. For serious acne: Paula's Choice. For daily maintenance: Isntree.\u003c\/p\u003e\n\u003ch4\u003eCan I use it with other acids or retinol?\u003c\/h4\u003e\n\u003cp\u003eYes, with spacing. Don't layer BHA directly with AHA in the same step; alternate mornings or evenings. With retinol: use BHA AM, retinol PM. Avoid combining all three in the same routine until skin tolerance is established (usually 8 to 12 weeks of gradual introduction).\u003c\/p\u003e\n\u003ch4\u003eWhen will I see results?\u003c\/h4\u003e\n\u003cp\u003eSmoother skin texture: 1 to 2 weeks. Reduced blackheads: 3 to 4 weeks. Improved pore appearance and fewer active breakouts: 6 to 8 weeks.\u003c\/p\u003e\n\u003ch4\u003eIs it safe for sensitive skin?\u003c\/h4\u003e\n\u003cp\u003e0.9% is gentle enough for most sensitive skin types. Start PM-only at 2 to 3 times per week and build up. If redness or stinging persists past 5 minutes, reduce frequency.\u003c\/p\u003e\n\u003ch4\u003eDoes it replace my exfoliating scrub?\u003c\/h4\u003e\n\u003cp\u003eYes. Chemical exfoliation via BHA is more effective and less traumatic than physical scrubs for most skin types. You can safely retire your scrub if you're using BHA consistently.\u003c\/p\u003e\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cp\u003ePair with Isntree Onion Newpair Booster Shot for serum-layer brightening, or COSRX AC Collection Blemish Spot Clearing Serum for spot treatment on active breakouts.\u003c\/p\u003e\n\u003cp\u003eBrowse the full Isntree collection or related: Korean toners, best Korean products for acne-prone skin.\u003c\/p\u003e\n","brand":"mirai-skin","offers":[{"title":"Default Title","offer_id":51741064954144,"sku":"52944030138740","price":18.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/8333\/4432\/files\/4ef49299a2dc3e6536f2b04daad7bd53.webp?v=1779694173","url":"https:\/\/usmirai-skin.com\/products\/isntree-chestnut-bha-0-9-clear-toner-200ml-mirai-skin-isntree-chestnut-bha-0-9-clear-toner-200ml","provider":"usmirai-skin.com","version":"1.0","type":"link"}