Neither single-spin nor double-spin preparation is proven to guarantee a better hair result. A small 2025 meta-analysis found no statistically significant difference in hair-density improvement, so the preparation label alone is not a sound reason to choose a clinic.
Evidence checked 1 November 2026. Prepared by The Wellness Team.
Is double-spin PRP better for hair loss?
It is not established that two spins are clinically better than one. Both methods separate components of a blood sample, but the resulting product depends on the whole preparation process, not just the number of spins. A more concentrated-sounding label is not the same as better evidence.
For someone considering a course, the first question is whether the diagnosis is androgenetic alopecia and whether PRP is suitable. Preparation details matter within a safe clinical protocol; they do not replace diagnosis, consent or an honest discussion of expected benefit.
What did the 2025 comparison actually find?
The Frontiers in Medicine review included three randomised trials with 90 participants. The pooled hair-density comparison did not show a statistically significant difference between single-spin and double-spin methods. The reported confidence interval included no difference.
The paper’s conclusion favoured single-spin, but its numerical results do not establish superiority. This distinction matters when a clinic quotes a paper as proof that its device is the best. Small trials and varied protocols leave considerable uncertainty.
Why is a platelet count not the same as a hair result?
A laboratory characteristic is a surrogate measure. What patients care about is whether hair density, shaft diameter or appearance improves enough to matter, and whether that improvement lasts. A higher platelet concentration does not by itself demonstrate a better outcome.
Ask how the clinic measures progress, whether photographs use consistent lighting and styling, and when the decision to continue is reviewed. Do not confuse a photograph taken under different conditions with a reliable measure of growth.
Discuss your circumstances with The Wellness. A written plan and quote come before any decision to proceed.
What does the wider PRP evidence support?
Systematic reviews suggest PRP can improve some hair outcomes in androgenetic alopecia, but preparation methods, treatment schedules and outcome measures differ. This makes an exact personal prediction difficult. Results from one protocol should not be promised for every product called PRP.
PRP is not a universal treatment for hair loss. Scarring disorders, infection and other causes may need different care. A widening parting, sudden shedding and an inflamed scalp should not all be assigned the same injection course.
Which questions should you ask before paying?
Ask what diagnosis is being treated, why PRP is being considered, how the preparation is controlled and how progress will be documented. Ask about alternatives, discomfort, possible adverse effects and what would lead to stopping or changing the plan.
Request a full course quote and a review point rather than buying an indefinite sequence. An expensive device name or technical acronym should not stand in for a clinical explanation. No clinician can guarantee that an individual will achieve a particular density gain.
What should a clinic explain about its own method?
The clinic should describe the relevant process clearly without claiming that a single technical variable determines success. Device instructions, sterile technique, staff competence and traceability are practical parts of care. Published findings about one system may not transfer to another.
The London PRP Clinic offers doctor-led assessment in London. The team can discuss suitability and provide the proposed treatment scope and fee before you commit. This article does not certify a particular centrifuge, tube or preparation system.
What is the decision worth taking away?
Choose a plan that makes diagnosis, evidence limits and review criteria understandable. The better conversation is about why this treatment fits your hair loss and how you will know whether it helped, not whether one marketing term sounds more advanced.
If you already have a proposal elsewhere, bring the written plan and baseline photographs. A second discussion should help you understand the decision, without pretending that different preparation labels are automatically interchangeable.
Sources and evidence limits
- 2025 randomised-trial meta-analysis of single-spin and double-spin PRP
- 2025 systematic review and meta-analysis of PRP for alopecia
This guide supports a clinical discussion; it cannot establish a diagnosis or confirm that a procedure is appropriate for you.
Your next step
Ask The Wellness for an individual assessment. Tell the team what you want to resolve and bring your existing records, so the first conversation starts with your needs rather than a package.