{"title":"Peptides for Hair Growth \u0026 Follicle Research","description":"\u003cstyle\u003eheader.purist-hero{display:none!important}.pp-intro{background:#fff!important;padding:0!important}.pp-intro .pp-wrap{max-width:none!important;margin:0!important;padding:0!important;text-align:left!important}.pp-intro .pp-kicker,.pp-intro .pp-trust{display:none!important}.pp-body{background:#fff!important;padding:0!important}.pp-body .pp-wrap{max-width:none!important;margin:0!important;padding:0!important}.pp-body .pp-cta,.pp-faqwrap:empty{display:none!important}.px-cut{display:none!important}\n.px{--nv:#0d2233;--tl:#3a9ab5;--ink:#1f2937;--mut:#5b6b7a;--ln:#e3e8ee;--sf:#f5f8fa;font-family:Montserrat,-apple-system,sans-serif;color:var(--ink);line-height:1.6}.px *{box-sizing:border-box}.px h1,.px h2,.px h3,.px h4{color:var(--nv)!important;font-weight:800;line-height:1.15;margin:0 0 14px;padding:0;border:0}.px p,.px li,.px td,.px th,.px div,.px span{color:var(--ink)}.px 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p{color:#5b6b7a!important;font-size:15px}.pp-body .px .px-ac summary h3{font-size:16.5px;font-weight:700;margin:0;display:inline}.pp-body .px a{border-bottom:0;font-weight:inherit}.pp-body .px .px-tbl td a,.pp-body .px .px-tbl td a:hover{color:#0d2233!important;font-weight:700;border-bottom:1px solid rgba(58,154,181,.5)}.pp-body .px .px-cbody .px-cd+.px-lnk{margin-top:auto}.pp-body .px .px-lnk,.pp-body .px .px-lnk:hover{border:1px solid #0d2233;color:#0d2233!important;font-weight:700}.pp-body .px .px-coa,.pp-body .px .px-coa:hover{border:1px solid #e3e8ee;color:#0d2233!important;font-weight:700}.pp-body .px .px-rel a,.pp-body .px .px-rel a:hover{border:1px solid #e3e8ee;color:#0d2233!important;font-weight:600}.pp-body .px .px-b2{border:1px solid #e3e8ee;color:#0d2233!important;font-weight:600}.pp-body .px .px-stkc,.pp-body .px .px-stkc:hover{border:1px solid #e3e8ee}.pp-body .px .px-stkc .px-stkt{color:#0d2233!important}.pp-body .px .px-stkc .px-stka{color:#3a9ab5!important}.pp-body .px ul,.pp-body .px ul li{background:none;border:0;padding:0;border-radius:0}.pp-body .px em{color:#5b6b7a;font-size:inherit}.pp-body .px .px-coa em{color:#3a9ab5!important;font-size:11px;font-weight:600}.pp-body .px .px-note em{font-size:12.5px}\n@media(max-width:1000px){.px-cc{grid-template-columns:repeat(2,1fr)}}@media(max-width:900px){.px-g2{grid-template-columns:1fr;gap:28px}.px-hero h1{font-size:30px}.px-stats .px-in{grid-template-columns:repeat(2,1fr);gap:20px}.px-sec{padding:42px 0}.px-sec h2,.pp-body .px .px-sec h2{font-size:23px}.px-tbl td:first-child{width:auto}}@media(max-width:560px){.px-cc,.px-cc1{grid-template-columns:1fr;max-width:none}.px-hero{padding:28px 0 36px}.px-hero h1{font-size:27px}}\n\u003c\/style\u003e\n\u003cdiv class=\"px px-top\"\u003e\n\u003cdiv class=\"px-full px-hero\"\u003e\u003cdiv class=\"px-in px-g2\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"px-crumb\"\u003e\n\u003ca href=\"\/\"\u003eHome\u003c\/a\u003e\u003cspan\u003e\/\u003c\/span\u003e\u003ca href=\"\/collections\"\u003eCollections\u003c\/a\u003e\u003cspan\u003e\/\u003c\/span\u003eHair Growth\u003c\/div\u003e\n\u003cdiv class=\"px-kick\"\u003eHair Growth \u0026amp; Follicle Research\u003c\/div\u003e\n\u003ch1\u003ePeptides for Hair Growth \u0026amp; Follicle Research\u003c\/h1\u003e\n\u003cdiv class=\"px-lede\"\u003ePeptides for hair growth are compounds studied for follicle vascularisation, scalp integrity and the signalling that supports hair density. In the Purist range this research centres on a single compound — GHK-Cu, the copper-binding tripeptide with the deepest body of published work in follicle and scalp models.\u003c\/div\u003e\n\u003cul class=\"px-ticks\"\u003e\n\u003cli\u003e99%+ Verified Purity\u003c\/li\u003e\n\u003cli\u003eIndependent HPLC Assay\u003c\/li\u003e\n\u003cli\u003eThird-Party Lab Tested\u003c\/li\u003e\n\u003cli\u003eLyophilised \u0026amp; Sealed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"px-btns\"\u003e\n\u003ca class=\"px-b1\" href=\"#px-grid\"\u003eView the 1 compound\u003c\/a\u003e\u003ca class=\"px-b2\" href=\"#px-choose\"\u003eHow to choose\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg class=\"px-img\" alt=\"Purist Peptides research vials for hair growth research\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0984\/2422\/6090\/files\/Gemini_Generated_Image_6d5y8z6d5y8z6d5y_1.png?v=1772795583\u0026amp;width=900\" width=\"900\" height=\"900\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-stats\"\u003e\u003cdiv class=\"px-in\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e1\u003c\/b\u003e\u003ci\u003eCompound in category\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e99%+\u003c\/b\u003e\u003ci\u003eMinimum verified purity\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHPLC\u003c\/b\u003e\u003ci\u003eIndependent assay method\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e100%\u003c\/b\u003e\u003ci\u003eBatches assayed\u003c\/i\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"px-cut\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"px px-bot\"\u003e\n\u003cdiv class=\"px-full px-sec\"\u003e\u003cdiv class=\"px-in px-g2\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"px-kick\"\u003eMechanisms\u003c\/div\u003e\n\u003ch2\u003eWhy hair research centres on copper peptides\u003c\/h2\u003e\n\u003cdiv class=\"px-lede\" style=\"max-width:none\"\u003eHair research approaches the follicle as a micro-organ dependent on its blood supply and surrounding matrix. GHK-Cu is studied for angiogenesis — the formation of new capillaries improving perifollicular blood supply — alongside collagen synthesis supporting the surrounding dermal structure, and anti-inflammatory signalling affecting the scalp micro-environment. That combination is why a single compound covers what would otherwise require several.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg class=\"px-img\" alt=\"Purist Peptides research compounds in a laboratory setting\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0984\/2422\/6090\/files\/ChatGPT_Image_Mar_7_2026_11_45_56_AM.png?v=1772864180\u0026amp;width=800\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-sec px-alt\"\u003e\u003cdiv class=\"px-in\"\u003e\n\u003cdiv class=\"px-kick\"\u003eStudy design\u003c\/div\u003e\n\u003ch2\u003eHow hair protocols differ from skin protocols\u003c\/h2\u003e\n\u003cdiv class=\"px-sub\" style=\"max-width:900px\"\u003eHair models typically use intradermal scalp administration rather than systemic subcutaneous dosing, at 500 mcg–1.5 mg, 3–5× weekly, over 8–12 weeks — a longer horizon than skin protocols because the hair cycle itself is slow, and follicle research endpoints take one to three months to become measurable. Excessive daily dosing is avoided to limit vascular overgrowth, and total exposure is kept under 3 mg per day. Unlike most compounds in the range, GHK-Cu does not require cycling, as it occurs naturally in plasma and does not cause receptor down-regulation.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-sec\"\u003e\u003cdiv class=\"px-in\"\u003e\n\u003cdiv class=\"px-kick\"\u003eThe range\u003c\/div\u003e\n\u003ch2\u003eCompounds in this category\u003c\/h2\u003e\n\u003cdiv class=\"px-sub\"\u003eThe compounds grouped here, each with the pathway it is studied for and the protocol shape most often used.\u003c\/div\u003e\n\u003cdiv class=\"px-cc px-cc1\"\u003e\u003cdiv class=\"px-card\"\u003e\n\u003ca href=\"\/products\/ghk-cu\"\u003e\u003cimg alt=\"GHK-Cu research peptide vial by Purist Peptides\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0984\/2422\/6090\/files\/purist-peptides-ghk-cu-skin-collagen-hair-anti-aging-vial.jpg?v=1784719614\u0026amp;width=520\" width=\"520\" height=\"520\" loading=\"lazy\"\u003e\u003c\/a\u003e\u003cdiv class=\"px-cbody\"\u003e\n\u003ch4\u003eGHK-Cu\u003c\/h4\u003e\n\u003cdiv class=\"px-mech\"\u003eCopper tripeptide\u003c\/div\u003e\n\u003cdiv class=\"px-cd\"\u003eA copper-binding tripeptide studied for follicle vascularisation, scalp integrity, collagen support and hair density. Published third-party test report available (100 mg). Hair protocols typically run 500 mcg–1.5 mg intradermally, 3–5× weekly for 8–12 weeks, with a documented 3 mg daily ceiling\u003c\/div\u003e\n\u003ca class=\"px-lnk\" href=\"\/products\/ghk-cu\"\u003eView GHK-Cu\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-sec px-alt\" id=\"px-choose\"\u003e\u003cdiv class=\"px-in\"\u003e\n\u003cdiv class=\"px-kick\"\u003eSelection\u003c\/div\u003e\n\u003ch2\u003eHow to choose\u003c\/h2\u003e\n\u003cdiv class=\"px-sub\"\u003eStart from the research question, not the compound name.\u003c\/div\u003e\n\u003ctable class=\"px-tbl\"\u003e\n\u003ctr\u003e\n\u003cth\u003eIf the research question is…\u003c\/th\u003e\n\u003cth\u003eStart with\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFollicle and scalp research\u003c\/td\u003e\n\u003ctd\u003eGHK-Cu, the only compound in the range with an established hair-model literature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResearching skin and hair together\u003c\/td\u003e\n\u003ctd\u003eGHK-Cu covers both; see \u003ca href=\"\/collections\/skin-peptides\"\u003ePeptides for Skin\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWant GHK-Cu combined with repair peptides\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/products\/glow\"\u003eGLOW\u003c\/a\u003e and \u003ca href=\"\/products\/klow\"\u003eKLOW\u003c\/a\u003e both contain it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBroader anti-aging context\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"\/collections\/anti-aging-longevity-peptides\"\u003eAnti-Aging \u0026amp; Longevity\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-sec px-alt\"\u003e\u003cdiv class=\"px-in px-g2\"\u003e\n\u003cdiv\u003e\u003cimg class=\"px-img\" alt=\"Independent laboratory testing of Purist Peptides research compounds\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0984\/2422\/6090\/files\/ChatGPT_Image_Mar_7_2026_01_51_37_PM.png?v=1772871717\u0026amp;width=800\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"px-kick\"\u003eVerified quality\u003c\/div\u003e\n\u003ch2\u003eTested before it ships\u003c\/h2\u003e\n\u003cdiv class=\"px-sub\"\u003ePublished third-party test report for GHK-Cu (100 mg) · minimum 99% verified purity · documented copper-load safety guidance, maximum daily exposure and intradermal protocol detail on the product page · lyophilised, refrigerate 2–8 °C after reconstitution. See Quality Standards.\u003c\/div\u003e\n\u003cdiv class=\"px-btns\"\u003e\u003ca class=\"px-b2\" href=\"\/pages\/quality-standards\"\u003eSee Quality Standards \u0026amp; all COAs\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-sec\"\u003e\u003cdiv class=\"px-in\"\u003e\u003cdiv class=\"px-faq\"\u003e\n\u003cdiv class=\"px-kick\"\u003eQuestions\u003c\/div\u003e\n\u003ch2\u003eHair Growth research FAQ\u003c\/h2\u003e\n\u003cdetails class=\"px-ac\" open\u003e\u003csummary\u003e\u003ch3\u003eWhat is GHK-Cu studied for in hair research?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"px-ab\"\u003e\u003cp\u003eGHK-Cu is referenced for perifollicular angiogenesis — improving the capillary supply to the follicle — alongside collagen support for surrounding dermal structure and anti-inflammatory signalling in the scalp micro-environment.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"px-ac\"\u003e\u003csummary\u003e\u003ch3\u003eHow is GHK-Cu administered in hair protocols?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"px-ab\"\u003e\u003cp\u003eHair models typically use intradermal scalp administration rather than systemic subcutaneous dosing, at 500 mcg–1.5 mg, 3–5× weekly. Full reconstitution and syringe guidance is on the product page.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"px-ac\"\u003e\u003csummary\u003e\u003ch3\u003eHow long before hair research endpoints are measurable?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"px-ab\"\u003e\u003cp\u003eProtocols generally run 8–12 weeks, because the hair growth cycle is slow and follicle-level changes take one to three months to register. This is a longer horizon than skin protocols using the same compound.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"px-ac\"\u003e\u003csummary\u003e\u003ch3\u003eIs there a maximum safe exposure?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"px-ab\"\u003e\u003cp\u003eResearch guidance caps daily exposure at 3 mg. Sustained exposure above that, particularly alongside copper supplementation, raises copper-accumulation concerns — documented in full on the GHK-Cu product page.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"px-ac\"\u003e\u003csummary\u003e\u003ch3\u003eDoes GHK-Cu need to be cycled?\u003c\/h3\u003e\u003c\/summary\u003e\u003cdiv class=\"px-ab\"\u003e\u003cp\u003eNo. It occurs naturally in human plasma and does not cause receptor down-regulation, so protocols commonly run continuously for 3–6 months rather than in on\/off cycles.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-sec px-alt\"\u003e\u003cdiv class=\"px-in\"\u003e\n\u003cdiv class=\"px-kick\"\u003eKeep exploring\u003c\/div\u003e\n\u003ch2\u003eRelated research categories\u003c\/h2\u003e\n\u003cdiv class=\"px-rel\"\u003e\n\u003ca href=\"\/collections\/skin-peptides\"\u003eSkin \u0026amp; Collagen\u003c\/a\u003e\u003ca href=\"\/collections\/anti-aging-longevity-peptides\"\u003eAnti-Ageing \u0026amp; Longevity\u003c\/a\u003e\u003ca href=\"\/collections\/recovery-repair-peptides\"\u003eRecovery \u0026amp; Repair\u003c\/a\u003e\u003ca href=\"\/collections\/energy-mitochondrial-peptides\"\u003eEnergy \u0026amp; Mitochondrial\u003c\/a\u003e\u003ca href=\"\/collections\/all-peptides\"\u003eThe full range\u003c\/a\u003e\u003ca href=\"\/pages\/peptide-stacks\"\u003eAll peptide stacks\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-cta\"\u003e\u003cdiv class=\"px-in\"\u003e\n\u003ch2\u003eResearch-grade, verified, traceable.\u003c\/h2\u003e\n\u003cp\u003eEvery batch assayed by an independent laboratory before release — minimum 99% verified purity.\u003c\/p\u003e\n\u003cdiv class=\"px-btns\" style=\"justify-content:center\"\u003e\n\u003ca class=\"px-b1\" style=\"background:#fff;color:#0d2233!important\" href=\"#px-grid\"\u003eShop this category\u003c\/a\u003e\u003ca class=\"px-b2\" style=\"background:transparent;color:#fff!important;border:1px solid rgba(255,255,255,.35)\" href=\"\/pages\/quality-standards\"\u003eQuality Standards\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"px-full px-note\"\u003e\u003cdiv class=\"px-in\"\u003e\u003cem\u003eResearch use only. Not for human or veterinary consumption. Supplied strictly for qualified researchers and laboratory settings.\u003c\/em\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n(function(){var th=document.querySelector('header.purist-hero h1');if(th)th.remove();var g=document.querySelector('[id*=\"collection_products\"]');if(g\u0026\u0026!document.getElementById('px-grid')){var a=document.createElement('span');a.id='px-grid';a.style.cssText='display:block;position:relative;top:-90px';g.parentNode.insertBefore(a,g);}})();\n\u003c\/script\u003e","products":[{"product_id":"ghk-cu","title":"GHK-CU","description":"\u003cp data-path-to-node=\"2\" id=\"p-rc_fdaeb4815dff9784-53\"\u003eA copper-binding peptide associated with collagen production, skin renewal, and extracellular matrix support.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"2\"\u003e\n\u003cb data-path-to-node=\"24,0,0\" data-index-in-node=\"0\"\u003eCollagen Production:\u003c\/b\u003e Linked to structural protein synthesis pathways.\u003c\/li\u003e\n\u003cli data-path-to-node=\"24,1,0\"\u003e\n\u003cb data-path-to-node=\"24,1,0\" data-index-in-node=\"0\"\u003eSkin \u0026amp; Hair Vitality:\u003c\/b\u003e Discussed in contexts of rejuvenation and scalp integrity.\u003c\/li\u003e\n\u003cli data-path-to-node=\"24,1,0\"\u003e\n\u003cb data-path-to-node=\"24,2,0\" data-index-in-node=\"0\"\u003eAntioxidant Activity:\u003c\/b\u003e Connected to oxidative stress modulation.\u003c\/li\u003e\n\u003cli data-path-to-node=\"24,1,0\"\u003e\n\u003cb data-path-to-node=\"24,3,0\" data-index-in-node=\"0\"\u003eHigh Purity Standard:\u003c\/b\u003e 99% purity verified via analytical testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"24,1,0\"\u003e\u003cb data-path-to-node=\"12,2,1,6,0\" data-index-in-node=\"0\"\u003eRegulatory Note:\u003c\/b\u003e Research Use Only.\u003c\/p\u003e","brand":"Purist Peptides","offers":[{"title":"Default Title","offer_id":51215886647594,"sku":null,"price":650.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/2422\/6090\/files\/purist-peptides-ghk-cu-skin-collagen-hair-anti-aging-vial.jpg?v=1784719614"}],"url":"https:\/\/puristpeptides.co.za\/collections\/hair-growth-peptides.oembed","provider":"Purist Peptides","version":"1.0","type":"link"}