Redensyl finns i många hårserum och hårvatten och marknadsförs gärna som ett alternativ till hårtransplantation. Här reder vi ut vad ämnet är, vad studien faktiskt visar – och hur du bedömer produkter som innehåller det.
ARBUTI Hair Salon · Uppdaterad oktober 2026
Vad är Redensyl?
Redensyl är en råvara som kosmetikatillverkare använder i serum, hårvatten och schampon – inte en egen produkt. Den består av två växtbaserade molekyler (DHQG, ett derivat av dihydrokvercetin, och EGCG2, ett derivat av grönteämnet EGCG) samt glycin och zink. Vanligt är koncentrationer runt 3 %.
Hur ska Redensyl verka?
Enligt tillverkaren stimulerar Redensyl stamceller i hårsäckens yttre rotskida. Dessa celler är viktiga för att ett hårstrå ska gå in i växtfasen. Dessutom ska Redensyl dämpa inflammatoriska processer vid hårroten. Målet: fler hårstrån som växer, färre som faller.
Vad studien faktiskt visar
Råvarutillverkarens pilotstudie, uppdaterat oktober 2026.
Uppgifter enligt råvarutillverkaren
Deltagare
26 män med måttligt ärftligt håravfall; 14 med Redensyl, 12 med placebo
Längd
84 dagar, lotion med 3 % Redensyl
Resultat
Fler hårstrån i växtfasen och färre i avfallsfasen än med placebo
Vad som saknas
Kvinnor, fler deltagare, en oberoende upprepning
Till det kommer laboratorieförsök på enskilda hårsäckar, där Redensyl klarade sig bra – delvis bättre än minoxidil. Men labbresultat går inte att föra över rakt av till hårbotten. Och de ofta citerade ”upp till 28 200 nya hårstrån” är ett uppräknat toppvärde från reklamen, inget genomsnitt.
Så bedömer du produkter med Redensyl
Koncentration
Seriösa tillverkare anger den. Studien gjordes med 3 %.
Form
Ett serum eller hårvatten som stannar i hårbotten är mer meningsfullt än ett schampo som sköljs ur efter några minuter.
Löften
Var försiktig med ”ersätter hårtransplantation” eller ”bättre än minoxidil” – det har studieläget inte stöd för.
Tålamod
Som med alla medel mot håravfall: minst tre månader.
En känd produkt med Redensyl är Panthrix. En överblick över serum med och utan Redensyl hittar du i vår jämförelse av hårserum, och den stora jämförelsen av kända hårväxtmedel under Topp 10 hårväxtmedel.
Våra rekommendationer
1
Vårt val för hårbotten
LADUTI Hair Serum
Ett serum med andra aktiva ämnen: AnaGain™ och Procapil™. Du applicerar det på kvällen och det verkar över natten i hårbotten – utan minoxidil, utan hormoner, för kvinnor och män. För AnaGain™ anger råvarutillverkaren efter tre månader 78 % fler hårstrån i växtfasen i förhållande till vilande hårstrån (20 personer).
Fördelar
Två studerade aktiva ämnen
En gång om dagen, över natten
Hudtolerans enligt Dermatest® ”mycket bra”
Att tänka på
Studier på de enskilda aktiva ämnena, inte på det färdiga serumet
Det går inte att säga. I labbet klarade sig Redensyl bra, men i hårbotten finns bara en liten studie. Minoxidil är ett läkemedel och betydligt bättre studerat.
Har Redensyl biverkningar?
Som kosmetiskt aktivt ämne anses det vara väl tolererat; irritation i hårbotten kan som med alla produkter förekomma. Har du känslig hårbotten, testa först på en liten yta.
Hur lång tid tar det innan Redensyl verkar?
Studien pågick i 84 dagar. Räkna med minst tre månaders regelbunden användning innan du utvärderar.
Hjälper Redensyl för skägget?
Det finns skäggoljor med Redensyl. Men ämnet har studerats i hårbotten, inte på skägget.
Vi är frisörer, inte läkare. Uppgifter enligt råvarutillverkaren och publicerade sammanfattningar, uppdaterat oktober 2026. Vid plötsligt eller kraftigt håravfall bör du låta en läkare utreda orsaken.
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