Redensyl

Redensyl gets talked about a lot in hair growth marketing — sometimes with claims that go further than the evidence supports. This page sticks to what’s actually been published, and says plainly where the evidence stops.

Description

What is it?

Redensyl is a cosmetic active built from a combination of plant-derived compounds (including a Larch tree wood extract, glycine and zinc chloride), designed to target hair follicle stem cells and support the early, active phase of the hair growth cycle.

What does it actually do?

An independent 2025 review of the most commonly marketed topical hair-loss actives (Bikash C. “Topical Alternatives for Hair Loss: Beyond the Conventional.” International Journal of Trichology, 2025) covers Redensyl directly, alongside Procapil, Capixyl, Baicapil and AnaGain, and is worth quoting honestly: these actives “have been studied mostly as combined formulations with other agents in randomized controlled trials or prospective cohort studies and have shown promising results,” but “most of the studies have limited sample size, lack of comparison with standard therapies, nonuniformity between study groups, [and] nondisclosure of the type of alopecia treated.” (DOI)

One of the specific studies that review draws on (Merja A, Patel N, Patel M, Patnaik S, Ahmed A, Maulekhi S. “Safety and efficacy of REGENDIL™ infused hair growth promoting product in adult human subject having hair fall complaints.” Journal of Cosmetic Dermatology, 2023) tested a serum combining Redensyl, AnaGain, Procapil, Capilia Longa and hyaluronic acid over 60 days in 32 subjects, finding statistically significant improvements in hair growth rate, thickness and density with no adverse events. (DOI)

(Note: this is the honest, load-bearing point of this page — that study, like most published Redensyl research, tested a multi-ingredient combination, not Redensyl by itself, so it can’t isolate Redensyl’s individual contribution to the result.)

Who is it good for?

Anyone in a hair-thinning-prevention routine, as one active among several — the same honest framing as Anagain above, not a standalone or guaranteed solution.

No real precautions — well tolerated in the cited studies with no reported adverse events.

How Mystic Dust uses it

Formulated in Hair Growth Shampoo and Hair Growth Serum, alongside Anagain, Procapil (shampoo) and Caffeine. Also formulated into Scalp Strength Advanced Hair Growth Shampoo, where it’s paired with Anagain, Caffeine and Saw Palmetto.

Pairs well with

Anagain, Caffeine, Niacinamide — formulated alongside it across Mystic Dust’s hair care range.

Use with caution alongside

Nothing specific.

Research & Findings

According to PubMed: -

Bikash C. “Topical Alternatives for Hair Loss: Beyond the Conventional.” International Journal of Trichology, 2025;17(1):13-19. DOI

Merja A, Patel N, Patel M, Patnaik S, Ahmed A, Maulekhi S. “Safety and efficacy of REGENDIL™ infused hair growth promoting product in adult human subject having hair fall complaints (alopecia).” Journal of Cosmetic Dermatology, 2023;23(3):938-948. DOI