Redensyl is a topical solution used to treat hair loss made of a combination of plant-based compounds and nutrients:
- dihydroquercetin-glucoside (DHQG)
- Epigallocatechin gallate-glucoside (EGCG2)
- glycine
- zinc
DHQG AND EGCG2 are believed to help with hair growth by stimulating the stem cells and fibroblast cells in the hair follicles. EGCG2 is also thought to block the enzyme 5-alpha reductase, which helps block DHT (the hormone which causes male pattern baldness, which you can find out more about here). Meanwhile, glycine and zinc support the formation of keratin, the main structural protein in hair.
Now that we know what Redensyl is, we’ll take a look at the existing research to understand how well it works as a hair loss treatment.
What does the research say?
Research so far on Redensyl is limited but shows it could be a promising treatment for male pattern baldness. It has also rarely been studied by itself – most trials test it in combination with other hair growth ingredients, so it’s hard to tell how well it works by itself. The only study of Redensyl by itself was carried out by the company which manufactures it: Givaudan. This raises the potential for research bias.
Here’s a breakdown of the existing research:
-
Ex vivo study (lab-based, on human scalp tissue)
Found an 8–17% increase in hair density. Promising, but results from lab tissue studies don’t always translate directly to real-world outcomes. This study was also conducted by Givaudan. -
2019 clinical trial
Compared Minoxidil 5% with a blend of Redensyl, Capixyl, and Procapil (RCP). 64.7% of participants using RCP improved, versus 25.5% with Minoxidil. However, results were based on subjective assessments (patient and researcher evaluations), not objective measures like hair counts or digital imaging. -
2020 study (41 participants)
Tested Redensyl combined with Sepicontrol A5. Results showed that 7.7% of participants had strong improvement, and 73.1% had moderate improvement. 19.2% remained stable
Again, this was a combination treatment, not Redensyl alone. -
2023 study (32 participants)
Evaluated Regendil (Redensyl + Procapil + Anagain + Capilia longa). Found significant improvements in growth rate, thickness, and density by Day 30 and Day 60.
No large-scale human trials have been conducted on Redensyl by itself at the time of writing (2025).
While early studies suggest potential, more independent, controlled research is needed to confirm how well it really works.
Is it worth it?
Redensyl may help with hair regrowth, and current evidence suggests it has minimal side effects. This could make it appealing for people who don’t tolerate other treatments well.
However, Minoxidil remains the gold standard. It is:
- Backed by decades of large-scale clinical research
- Proven effective in up to 84% of patients at slowing or stopping hair loss
- Officially licensed by the MHRA as a treatment for male pattern baldness
The potential downside to Minoxidil is that some users experience mild scalp irritation, itchiness, or dandruff, or potentially find it difficult to remain consistent with twice-daily applications. In those cases, oral Minoxidil - a capsule form that avoids local reactions - may be a good alternative.
All of our blog articles are reviewed by our Medical Director before publication.
