Alternative & complementary remedies: what the evidence says
PRP and Stem-Cell Injections for Shoulders: Expensive, Uncertain
5-minute read · Published September 25, 2026 · Updated September 25, 2026
What this is
PRP stands for platelet-rich plasma. It is a concentrate made from a small sample of your own blood, and it is injected into a painful area. The idea is that the platelets release substances that may support healing.
Stem-cell injections use cells, often taken from elsewhere in the body, that are meant to support repair. Some clinics advertise both approaches for shoulder pain. Advertising is not evidence, so it is worth asking what the studies actually show.
What the research says
- There isn't strong research on PRP or stem-cell injections for shoulder pain that we can point to, so the evidence level is insufficient. Ask your clinician.
- Exercise is the better-studied starting point. Exercise that adds resistance and progresses over time probably helps rotator-cuff-related shoulder pain [R01]. A 2025 review found that specific exercise types, including scapular stabilization, improved pain and function [R03].
- Most shoulder pain is managed in primary care with advice and exercise. NHS guidance advises against routine scans unless there is a clear treatment pathway [R30]. That points to a clinician-led plan, not a single procedure.
- Acupuncture is another remedy people ask about. A Cochrane review found that its results were about the same as sham treatment at two to four weeks, and there was not enough evidence to say it works or is harmful. Its evidence level is limited [R24].
What you can do
- Ask what has been tried, and in what order. A clinician can outline options, usually starting with advice and exercise [R30].
- Ask about the evidence for your situation. Try asking, "What studies support this for my kind of shoulder problem?" If the answer is unclear, that is useful information.
- Ask about cost. Injections can be expensive, and they may not be covered by your plan. Ask for the full price before agreeing to anything.
- Keep up gentle movement your clinician approves. Sit tall in a chair and make slow, pain-free arm reaches in front of you.
- Keep a short symptom log. Note pain, sleep and daily activity for a few weeks, and bring it to appointments.
- Share your full medication list. Talk to your doctor or pharmacist about any medicines, including blood thinners, before an injection.
Where ShoulderBack Pro fits — and where it doesn't
ShoulderBack Pro does not fit this topic: it is no substitute for an injection decision or a clinical plan. Start with an assessment and ask which gentle movements suit you. The routines are an option after that.
When to see a professional
See a doctor or physiotherapist promptly if you have: pain after a fall or injury with sudden weakness or loss of movement; a shoulder that looks deformed, very swollen or bruised; fever or feeling unwell alongside the pain; chest pain or breathlessness (call emergency services); constant pain that doesn't change with rest or activity; pain that wakes you most nights; numbness, tingling or weakness into the arm or hand; pain in several joints at once; or pain that hasn't improved after a couple of weeks of sensible self-care [R30].
A doctor who diagnoses shoulder problems, often a sports medicine or shoulder specialist, decides whether an injection is an option. A physiotherapist can help plan the movement side of care.
Try this movement
Greet the Morning (seated) ritual →Frequently asked questions
Do PRP injections work for shoulders?
The sources we can cite do not show that they work for shoulder pain. Evidence is insufficient to say, so ask a clinician to explain the evidence for your situation.
Are stem-cell injections proven?
Not in the sources we can cite. Be cautious with any clinic that promises quick or guaranteed results.
Should I skip injections completely?
Not necessarily. Your clinician can weigh the options with you. If an injection is offered, ask about the evidence, the cost and the plan that follows it.
Is exercise a better first step?
For many shoulder problems, advice and exercise come first. Exercise that adds resistance and progresses over time probably helps [R01]. Ask your clinician whether it fits your situation.
Sources
- Naunton J et al. (2020). Effectiveness of progressive and resisted and non-progressive or non-resisted exercise in rotator cuff related shoulder pain: systematic review and meta-analysis of RCTs. Clinical Rehabilitation. https://search.pedro.org.au/search-results/record-detail/61404
- Frontiers in Bioengineering & Biotechnology (2025). Specific modes of exercise to improve rotator cuff-related shoulder pain: systematic review and meta-analysis. https://pmc.ncbi.nlm.nih.gov/articles/PMC12011739/
- Cochrane (Green S et al., 2005; edited, conclusions unchanged). Acupuncture for shoulder pain. CD005319. https://www.cochrane.org/evidence/CD005319
- NHS Greater Glasgow & Clyde, Shoulder red flags; NHS MPFT self-help, Shoulder pain; BESS/BOA pathway summary (2021). https://www.nhsggc.scot/page_category/services/page/33
More in this topic
Essential guide: Alternative Remedies for Shoulder Pain: What the Evidence Says About Each
Over-the-Counter Pain Relief: Acetaminophen vs NSAIDs for Shoulder Pain
Shockwave Therapy for Calcific Shoulder Tendinitis: One of the Better-Supported Options
Hydrotherapy and Pool Exercise for Shoulders: Why Water Works