{"product_id":"hydroxypinacolone-retinoate-hpr-powder-99","title":"Hydroxypinacolone Retinoate (HPR) Powder 99%","description":"\u003ch2\u003eHydroxypinacolone Retinoate (HPR) Powder 99% — Why Buy Powder Over a Pre-Diluted Solution?\u003c\/h2\u003e\n\n\u003cp\u003eMost HPR products on the market are pre-diluted solutions — typically 10% HPR in a carrier oil. That means you're paying for 90% carrier. With \u003cstrong\u003e99% pure HPR powder\u003c\/strong\u003e, you pay for the active itself, choose your own carrier, control your exact concentration, and get significantly more finished product per gram purchased.\u003c\/p\u003e\n\n\u003ch3\u003e5 Reasons Formulators Choose HPR Powder\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum cost efficiency\u003c\/strong\u003e — 1g of 99% HPR powder yields the same active as 9.9g of a 10% HPR solution. You get ~10x more active per dollar spent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull concentration control\u003c\/strong\u003e — dial in exactly 0.01%, 0.05%, or 0.1% HPR in your finished formula without being locked into a pre-set dilution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier flexibility\u003c\/strong\u003e — dissolve in squalane, caprylic\/capric triglyceride (MCT), jojoba, or any cosmetic ester that suits your formula — not whatever carrier the manufacturer chose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleaner formulations\u003c\/strong\u003e — no mystery carrier ingredients; you know exactly what's in your product\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScalability\u003c\/strong\u003e — ideal for small-batch artisan production and scaling up; consistent, reproducible results batch after batch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Dissolve HPR Powder Successfully\u003c\/h2\u003e\n\n\u003cp\u003eHPR is \u003cstrong\u003eoil-soluble and insoluble in water\u003c\/strong\u003e. It must be dissolved in an oil or ester before incorporation into any formula.\u003c\/p\u003e\n\n\u003ch3\u003eStep-by-Step Dissolution Method\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh your HPR powder accurately\u003c\/strong\u003e — use a precision scale (0.001g resolution minimum). HPR is used at very low percentages; accuracy is critical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect your carrier oil\u003c\/strong\u003e — \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/7629208191075\"\u003eOlive Squalane\u003c\/a\u003e is the preferred carrier: it is colourless, odourless, non-comedogenic, and highly stable. MCT oil and isononyl isononanoate are also suitable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarm your carrier gently\u003c\/strong\u003e — heat the carrier oil to 35–40°C (no higher). Gentle warmth aids dissolution without degrading the active\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd HPR powder to warm carrier\u003c\/strong\u003e — add the weighed powder directly to the warm oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStir continuously\u003c\/strong\u003e — use a glass rod or mini spatula and stir for 3–5 minutes until fully dissolved. The solution should be clear to very pale yellow with no visible particles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo not exceed 40°C\u003c\/strong\u003e — prolonged heat above 40°C risks degradation. If undissolved particles remain, increase stir time rather than temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncorporate into your formula\u003c\/strong\u003e — add the dissolved HPR-in-oil to your oil phase or cool-down phase of an emulsion\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eWhat Percentage to Use — The Complete Formulator's Guide\u003c\/h2\u003e\n\n\u003ch3\u003eEffective Usage Range\u003c\/h3\u003e\n\u003cp\u003eHPR is effective at very low concentrations. The established cosmetic usage range is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.01%\u003c\/strong\u003e — entry-level; suitable for sensitive skin, beginners, or daily-use products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.05%\u003c\/strong\u003e — mid-range; the most commonly used concentration in commercial HPR products; effective for most skin types\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.1%\u003c\/strong\u003e — upper range; for experienced retinoid users; use with a robust moisturizing base\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDo not exceed 0.1% HPR\u003c\/strong\u003e in finished leave-on formulations without clinical justification. Higher concentrations do not proportionally increase efficacy and increase irritation risk.\u003c\/p\u003e\n\n\u003ch3\u003eHow to Calculate Your HPR Percentage\u003c\/h3\u003e\n\n\u003cp\u003eThis powder is \u003cstrong\u003e99% pure HPR\u003c\/strong\u003e. For practical formulation purposes, treat it as 100% active (the 1% difference is negligible at cosmetic usage rates).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe formula:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003eWeight of HPR powder (g) = Target % ÷ 100 × Total batch weight (g)\u003c\/code\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWorked Examples\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eExample 1: 0.05% HPR in a 100g batch\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTarget: 0.05% HPR\u003c\/li\u003e\n\u003cli\u003eBatch size: 100g\u003c\/li\u003e\n\u003cli\u003eCalculation: 0.05 ÷ 100 × 100g = \u003cstrong\u003e0.05g HPR powder\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDissolve 0.05g HPR in ~5g squalane, then incorporate into your oil phase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eExample 2: 0.1% HPR in a 200g batch\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTarget: 0.1% HPR\u003c\/li\u003e\n\u003cli\u003eBatch size: 200g\u003c\/li\u003e\n\u003cli\u003eCalculation: 0.1 ÷ 100 × 200g = \u003cstrong\u003e0.2g HPR powder\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDissolve 0.2g HPR in ~10g squalane, then add to oil phase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eExample 3: 0.01% HPR in a 50g batch (sensitive skin formula)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTarget: 0.01% HPR\u003c\/li\u003e\n\u003cli\u003eBatch size: 50g\u003c\/li\u003e\n\u003cli\u003eCalculation: 0.01 ÷ 100 × 50g = \u003cstrong\u003e0.005g HPR powder\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAt this quantity, pre-dissolve in a larger carrier volume for accuracy: dissolve 0.05g HPR in 10g squalane (= 0.5% HPR solution), then use 1g of that solution per 100g batch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePro Tip: Make a Master Dilution for Accuracy\u003c\/h3\u003e\n\u003cp\u003eBecause HPR is used at such small quantities (often \u0026lt;0.1g per batch), weighing errors are common on low-resolution scales. The solution: \u003cstrong\u003emake a 1% or 10% HPR master dilution in squalane first\u003c\/strong\u003e, then use that dilution in your formula.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1% master dilution:\u003c\/strong\u003e dissolve 1g HPR powder in 99g squalane = 1% HPR solution. Use 5g of this per 100g batch to achieve 0.05% HPR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10% master dilution:\u003c\/strong\u003e dissolve 10g HPR powder in 90g squalane = 10% HPR solution (equivalent to our \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/8034643279971\"\u003eHPR 10% Liquid\u003c\/a\u003e). Use 0.5g per 100g batch to achieve 0.05% HPR\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFormulation Details\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eINCI Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHydroxypinacolone Retinoate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCAS Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e893412-73-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePurity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAppearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite to off-white crystalline powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolubility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOil-soluble; insoluble in water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActive Usage Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.01–0.1% in finished formula\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncorporation Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOil phase or cool-down, below 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Dependency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone — stable across wide pH range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShelf Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 months, properly stored\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–25°C, opaque\/amber container, away from light, heat, and humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCosmetic Grade — External Use Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ch3\u003eSuggested Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/7629208191075\"\u003eOlive Squalane Oil\u003c\/a\u003e — ideal dissolution medium and skin-compatible carrier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrier support:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/7903971868771\"\u003eNiacinamide Vitamin B3 Powder\u003c\/a\u003e — add to water phase of emulsions to reduce potential retinoid sensitivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydration:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/8001858732131\"\u003eHyaluronic Acid Powder LMW\u003c\/a\u003e — counterbalances retinoid-associated dryness in emulsion systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreservative (emulsions):\u003c\/strong\u003e \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/7629188005987\"\u003eEuxyl PE 9010\u003c\/a\u003e at 0.8–1% or \u003ca href=\"https:\/\/www.pureactivesco.ca\/products\/7946666967139\"\u003eGermall Plus\u003c\/a\u003e at 0.1–0.5%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAll products sold are cosmetic grade. For external use only. Intended for cosmetic and personal care formulations. Not for use in drug or pharmaceutical products.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Pure Actives Co.","offers":[{"title":"5 g","offer_id":44259193323619,"sku":null,"price":30.0,"currency_code":"CAD","in_stock":true},{"title":"10 g","offer_id":44259193356387,"sku":null,"price":55.0,"currency_code":"CAD","in_stock":true},{"title":"20 g","offer_id":44259193389155,"sku":null,"price":100.0,"currency_code":"CAD","in_stock":false},{"title":"50 g","offer_id":44259193421923,"sku":null,"price":230.0,"currency_code":"CAD","in_stock":false},{"title":"100 g","offer_id":44259193454691,"sku":null,"price":400.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/4154\/4291\/files\/HydroxypinacoloneRetinoate_HPR_Powder99.png?v=1781531016","url":"https:\/\/www.pureactivesco.ca\/fr\/products\/hydroxypinacolone-retinoate-hpr-powder-99","provider":"PURE ACTIVES","version":"1.0","type":"link"}