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Redensyl Guide: Uses, Results, Side Effects
Dr Ahmad Moussa (FRCS)
Medically reviewed by
Dr Ahmad Moussa (FRCS)
Updated on October 30, 2023

Despite advances in surgical and non-surgical techniques for tackling hair loss, many people still struggle to find an effective treatment. Enter Redensyl: a relatively new hair loss formula designed to tackle multiple mechanisms of hair loss.

But the jury’s still out on the effectiveness of Redensyl. While early studies are promising, there are some limitations that potential Redensyl users should be aware of.

In this article, we’ll review all the existing research on Redensyl for hair loss to assess the effectiveness of this new hair loss treatment, and find out if Redensyl can really help you tackle baldness.

Table of Contents

What is Redensyl?

Redensyl is a hair loss treatment that contains plant compounds (DHQG and EGCG2) which target specific stem cells and fibroblasts within the hair follicle [1]:

Redensyl informational graphic

Stem cells are unique in that they can develop into other types of cells. They can replace faulty follicle cells, leading to hair regeneration and regrowth. That’s why stem cell hair transplants are undergoing clinical trials to prove their effectiveness as another hair loss treatment.

Redensyl contains several other ingredients that are said to tackle certain triggers for hair loss:

  • Dihydroquercetin-glucoside (DHQG) — A plant compound that targets stem cells.
  • Epigallocatechin gallate-glucoside (EGCG2) — A plant compound that targets stem cells, and can also inhibit the enzymes responsible for male pattern baldness [2].
  • Glycine — An amino acid needed to produce keratin, an essential hair protein [3].
  • Zinc chloride — Zinc is necessary for synthesising proteins including keratin [4].

Does Redensyl really work for hair loss?

Early evidence suggests Redensyl may help treat androgenetic alopecia (male or female pattern hair loss) [1, 5]. But Redensyl is yet to be approved by the UK Medicines and Healthcare products Regulatory Agency (MHRA) — so does it really work for hair loss?

The most extensive research into the effectiveness of Redensyl has been commissioned by the company that developed it, Givaudan [1]. So these results should be viewed with a degree of scepticism. They found that after three months of treatment, 3% Redensyl increased hair density by 17 hairs per cm2, equating to approximately 10,200 hairs across a 600cm2 scalp.

Other studies have found that when combined with other ingredients, Redensyl can work for hair loss [5]. A topical solution containing Redensyl and Sepicontrol A5 greatly improved hair in 7.7% of patients. 73.1% saw moderate improvements, while 19.2% found the formula stabilised their hair loss.

Redensyl effectiveness: study details
  • Givaudan’s research investigated the effectiveness of Redensyl on 26 men with Norwood stage 3 to Norwood stage 4 hair loss. They assessed results one to three months after starting treatment. 14 men used Redensyl, and 12 used a placebo [1].
  • After three months, the Redensyl group increased the percentage of hairs in the growth phase of the hair growth cycle by 9% and reduced those in the shedding phase by 17%.
  • On average, 10,000 new hairs were observed after 84 days of treatment.
  • Another study examined the effectiveness of a topical blended hair loss treatment including Redensyl and Sepicontrol A5, a solution with anti-androgenic and anti-inflammatory effects [5]. 41 patients with androgenetic alopecia (18 male and 23 female) completed the study.
  • After six months of treatment, 7.7% had great improvement, 73.1% had moderate improvement, and 19.2% remained stable.
  • Researchers found the solution to have an excellent safety profile.

Redensyl results: before and after

So what visible hair growth can you expect after using Redensyl? Here are the results of three patients who used 3% Redensyl for three months, according to Givaudan’s study:

chart showing the results of using Redensyl

These photos suggest that Redensyl can effectively stimulate hair growth in balding men around stages 3-4 of the Norwood Scale. However, it might not be as effective if your hair loss is more extensive; this is often the case with topical hair loss solutions like Minoxidil.

No studies have yet published visual evidence of the impact of Redensyl on women. However, one early study suggests that Redensyl is safe and effective for female users [5].

Is Redensyl better than Minoxidil?

There’s no research directly comparing the effectiveness of Redensyl vs Minoxidil at the moment. However, one study has compared topical Minoxidil with a combined treatment known as RCP, which contains Redensyl, Capixyl, and Procapil (a group of plant-based therapies for hair loss) [6].

The study found that the RCP group saw substantial advantages compared with the Minoxidil group:

Researcher score (% who agreed patient had moderate to significant recovery)64.7%25.5%
Global photographic evaluation score88.9%60%
Self-evaluation score (% who agreed the bald area had shrunk)83.3%44.1%

It’s not yet known how much Redensyl alone is responsible for these improvements, so we can’t say for certain that Redensyl is better than Minoxidil. But this study indicates promising results for plant-based topical hair loss therapies.

What are the risks and side effects of Redensyl?

So far, only one study has investigated the side effects of Redensyl (in combination with Capixyl and Procapil) [6]. Researchers said no serious adverse effects were reported in their study, suggesting Redensyl alone is also safe. They concluded that:

“The combinational treatment of “topical RCP” represents a potentially innovative and effective approach for patients who have concerns regarding the side effects of topical Minoxidil.”

As a largely plant-based solution, it is possible that Redensyl could be a safe hair loss treatment with minimal side effects. However, this doesn’t mean there are no risks to using Redensyl. The solution is currently understudied, so there may be long-term or uncommon side effects that haven’t been discovered.

Can women use Redensyl?

Early evidence suggests Redensyl may be safe for treating women’s hair loss [5]. But it’s important to note that only 23 women participated in this study, and other research has indicated Redensyl has anti-androgenic effects which may not be safe for women [2]. That’s why certain treatments like Finasteride aren’t suitable for women.

If you’re a woman experiencing hair loss, it’s recommended that you avoid untested solutions like Redensyl until more research has proven their safety and effectiveness.

Female hair loss often has complex underlying causes that require hair loss blood tests and other assessments to unpick. Seek a professional diagnosis so you can find the best female hair loss treatment for you.

What happens when you stop using Redensyl?

As with other topical hair loss treatments, it’s likely that stopping Redensyl will lead to continuing hair loss. You need to apply the solution continuously to retain the effects. The only way to permanently restore your hair is with a hair transplant.

Proven hair loss treatments

Redensyl is a promising treatment for hair loss, but a lot more research is needed to establish its safety and effectiveness. In the meantime, try these proven treatments for hair loss:

  • Finasteride — The most recommended non-surgical male hair loss treatment, Finasteride is a well-tolerated, effective drug for male pattern baldness [7].
  • Minoxidil — While early evidence suggests Minoxidil may not be as effective as the RCP solution, it’s far more widely researched than Redensyl, and the side effects are well-known.
  • FUT — A type of hair transplant technique that allows for high-volume graft harvesting, while leaving a small scar at the back of the head.
  • FUE — The most popular hair transplant method, FUE involves extracting individual hair grafts to leave minimal scarring.

It’s not always easy to know which hair loss treatment is right for you. At the Wimpole Clinic, we specialise in creating tailored treatment plans for each patient, helping you get your hair (and your confidence) back. Book a consultation with our team to get started.

Redensyl Guide: Uses, Results, Side Effects, Wimpole Clinic

Dr Ahmad Moussa (FRCS)
Medically reviewed by Dr Ahmad Moussa (FRCS)Updated on October 30, 2023
The Wimpole Clinic offers FUE Hair, Beard & Eyebrow Transplants & Trichology.
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