Exosomes are tiny cell-signalling molecules that carry growth factors and proteins to hair follicles, stimulating dormant ones back into an active growth cycle. In clinical settings, they are delivered via microneedling or a derma stamp to reach the scalp directly. At Eden Medical, we use the Calecim Hair Growth Programme, which harnesses PTT-6 exosome technology to support hair regeneration through a combination of in-clinic and at-home treatment.
What the programme includes
♥ In-clinic sessions
- 3 sessions with our medical team
- PTT-6 delivered via microneedling or derma stamp
- Targets dormant follicles directly at the scalp
- Minimally invasive, little to no downtime
⌂ At-home care
- 6 guided at-home treatments
- Continues scalp nourishment between visits
- Supports consistent hair regeneration
- Full guidance and support provided
A free consultation is required before starting the programme. Book yours today.
Hair loss affects more people than most realise, and for many it has a real impact on confidence and wellbeing. While options like medication and hair transplants have been around for years, a newer generation of treatments is gaining serious clinical attention: exosome-based therapy. This post explains what exosomes are, how they work on the scalp, and why this approach is increasingly being used in clinical settings for hair thinning and loss.
At Eden Medical, we have introduced the Calecim Hair Growth Programme as our clinical response to this area, combining proven exosome science with a structured, medically guided treatment plan. If you would like to find out whether you are suitable, book a free consultation at your nearest clinic.
What are exosomes?
Exosomes are tiny vesicles, essentially microscopic bubbles, that are naturally produced by cells throughout the body. Their job is communication: they carry growth factors, proteins, cytokines and other signalling molecules from one cell to another, triggering repair, regeneration and renewal in the cells they reach.
Think of them as the body’s internal messaging system. When tissue is damaged or a follicle becomes dormant, exosomes are part of what the body sends to begin the recovery process. In a clinical setting, we can harness that same mechanism by delivering concentrated exosomes directly to the scalp, where they can act on struggling or inactive hair follicles.
You can read more about what exosomes do in our guide to exosome treatments for skin, where we also cover their use in facial rejuvenation and our microneedling with exosomes treatment.
PTT-6: the science behind Calecim
Hair loss has many causes, but two of the most common underlying factors are inflammation at the scalp and follicles entering a prolonged resting or dormant phase. Both of these are areas where exosomes show real clinical promise.
Research into exosome-based hair treatments has found that the right formulation can:
- Reactivate dormant hair follicles by sending growth signals directly to the follicle
- Reduce scalp inflammation, which is an underlying driver of many types of hair thinning
- Extend the anagen (active growth) phase of the hair cycle, meaning hair stays in its growing phase for longer
- Strengthen existing hair by supporting healthier follicle function
The mechanism is similar to that in wound healing: exosomes that suppress local inflammation allow the follicle to shift out of its resting state and begin producing hair again. This is not a surface-level approach. It works at a cellular level, which is why the results tend to be more meaningful than topical treatments alone.
The Calecim Hair Growth Programme at Eden Medical
At Eden Medical, we offer the Calecim Hair Growth Programme as a structured, clinically guided course of treatment. It is designed for people experiencing early to moderate hair thinning who are looking for a non-surgical, science-backed option.
The in-clinic sessions are carried out by our experienced medical team. PTT-6 is delivered to the scalp using a precise microneedling or derma stamp technique, which creates microchannels in the skin and allows the exosome-rich serum to reach the follicle directly rather than sitting on the surface. This method of delivery is what maximises the treatment’s impact.
The six at-home treatments are an equally important part of the programme. They keep the scalp nourished and support hair regeneration in between your clinic visits, which improves overall consistency of results. You will receive clear guidance from our team on how to use them correctly.
Who is this treatment suitable for?
The Calecim Hair Growth Programme is best suited for people with early-to-moderate hair thinning rather than complete hair loss. It is appropriate for both men and women and can be effective across a range of hair loss patterns, including:
- Androgenetic alopecia (pattern hair thinning)
- Hair thinning associated with hormonal changes, including menopause
- Diffuse thinning across the scalp
- Post-illness hair loss, including telogen effluvium
Suitability is always confirmed at your consultation. Our skin specialists and doctors will assess your hair and scalp, discuss your history and concerns, and let you know honestly whether this programme is likely to be a good fit for you. If it is not, we will point you in the right direction.
What to expect from the programme
The treatments themselves are minimally invasive and comfortable, with little to no downtime. Most people can return to normal activities the same day.
Results from exosome-based hair treatments develop gradually. Hair follicles work on their own cycle, so improvements in density, thickness and growth tend to become visible over weeks and months rather than immediately after a single session. The structured combination of in-clinic and at-home treatment within the Calecim programme is designed to maintain consistent results throughout.
As with all hair loss treatments, outcomes vary from person to person. Your consultation will give you a realistic picture of what to expect based on your individual hair and scalp condition.
How does this compare to other hair loss treatments?
Exosome therapy sits in a different category to most established hair loss options. It is non-surgical, requires no medication, and works by supporting the scalp’s own regenerative processes rather than overriding them. That makes it a meaningful option for people who are not ready for, or are not suitable for, more invasive approaches.
It can also complement other treatments. Some patients combine exosome programmes with polynucleotides or PRP, for example, or use them as a maintenance step following other scalp treatments. Your specialist will be able to advise on what makes sense for your situation.
Book your free consultation
If you are concerned about hair thinning and want to understand your options, the first step is a free consultation with our team. We will assess your hair and scalp properly, talk through your concerns without any pressure, and let you know whether the Calecim Hair Growth Programme is a suitable next step for you.
Eden Medical has clinics across Ireland, with a team of doctors and skin specialists experienced in hair and scalp treatments.
Frequently asked questions
What are exosomes and how do they help with hair loss?
What is PTT-6?
PTT-6 is Calecim’s patented active ingredient, a concentrated blend of more than 3,000 growth factors, cytokines and exosomes derived from cord lining stem cells. Clinical research has shown it increases hair follicle stem cell activity by 24% and reduces scalp inflammation significantly.
