Autologous Biologics
Growth Factor Profile
Women’s Health Clinic FAQ
What is injected during the O-Shot?
The O-Shot® is unique because it uses your own biological material rather than synthetic chemicals. The primary substance injected is a highly concentrated form of your own blood, known as Platelet-Rich Plasma (PRP).
Direct answer
The O-Shot consists of an injection of autologous Platelet-Rich Plasma (PRP). This is a therapeutic concentration of your own blood platelets, which have been separated from other blood components through centrifugation. In high-standard clinical protocols, this PRP is often 'activated' with a small amount of calcium gluconate or calcium chloride. This activation triggers the platelets to release their stored growth factors immediately upon injection, initiating the regenerative process in the clitoral and vaginal tissues.
Crucially, the O-Shot does not contain synthetic dermal fillers, steroids, or hormones. It is a 100% natural, biocompatible substance derived entirely from your own body, eliminating the risk of allergic reactions or rejection.
Educational only. Detailed breakdown of the biological components used in the O-Shot procedure. Results vary. Not a cure.

At a glance
Understanding the precise makeup of the O-Shot injection helps clarify how it achieves tissue rejuvenation.
Injection Composition
Core Components
Primary Agent
Autologous PRP
Concentration
≥1,000,000 platelets/μL
Activator
Calcium Chloride/Gluconate
Synthetic Additives
Zero
The 'Activated' Difference
Using an activator like calcium gluconate ensures that 95% of growth factors are released within the first 10 minutes of injection, maximizing the therapeutic window for tissue repair.
Calcium Activator
Growth Factors
Fibrin Scaffold
Biocompatible
Detailed answer
Breaking Down the Formula
While the base is your blood, the 'magic' of the O-Shot lies in the specific concentration of healing proteins.
The Three Pillars of the Injection
The injection is designed to provide both a chemical signal for growth and a physical structure for new cells to thrive.
Growth Factors
Fibrin
Cytokines
High-Yield Platelets
The platelets are the main 'active ingredient.' They contain alpha granules that act as storage for regenerative proteins.
Regenerative Growth Factors
Once injected, factors like VEGF (for blood flow) and PDGF (for cell growth) are released to rebuild vaginal and clitoral tissue.
Provisional Fibrin Matrix
The injection includes a small amount of fibrin, which forms a biological 'net' or scaffold to hold the growth factors in place.
Cellular Signaling Cytokines
These molecules act as messengers, 'calling' your body's natural stem cells to the site of injection to complete the repair.
No Fillers, No Foreign Bodies
Many patients confuse the O-Shot with intimate fillers (like Hyaluronic Acid). However, the O-Shot does not 'fill' or 'plump' tissue synthetically. It stimulates your body to grow its own natural, healthy tissue.
This makes the O-Shot an ideal choice for women who prefer natural therapies over pharmaceutical or synthetic alternatives.
Patient safety
Why Autologous Matters
Using your own blood (autologous) vs. lab-created substances offers several clinical advantages.
Zero Rejection Risk
Because the DNA in the injection is your own, your immune system recognizes it as 'self,' making rejection biologically impossible.
Balanced Harmony
PRP contains a natural ratio of growth factors that work together. Synthetic treatments often use only one factor, which can be less effective.
Natural Integration
The substances in the O-Shot integrate seamlessly into the tissue, whereas synthetic fillers can sometimes feel like a foreign body.
Sustainable Healing
The injection triggers a biological process that continues for months, rather than just providing a temporary chemical effect.
The Safety Spectrum
By avoiding synthetic additives, we minimize the risk of late-onset granulomas or inflammatory responses that can occur with foreign substances.
Every syringe used in the O-Shot is prepared specifically for you, right before your eyes, ensuring total biological integrity.
Considerations
What Else is Used?
While the O-Shot itself is pure PRP, the procedure involves other clinical agents to ensure comfort.
Comfort & Precision
We prioritize a painless experience by using high-quality topical and local anesthetics before the PRP is introduced.
Lidocaine
Sterile Saline
Antiseptic
Topical Anesthetic Cream
A high-potency numbing cream is applied to the clitoral and vaginal area 20-30 minutes before the procedure.
Local Lidocaine
A tiny amount of local anesthetic (similar to what a dentist uses) ensures the injection sites are completely insensitive to pain.
Sterile Preparation
The skin is prepared with a medical-grade antiseptic (like Chlorhexidine) to ensure no bacteria are introduced during the injection.
Fine-Gauge Delivery
We use the smallest possible medical needles (often 30G or 32G) to deliver the PRP with microscopic precision.
A Clean Clinical Protocol
Our protocol ensures that only the essentials reach your tissue: your own healing factors and the necessary numbing agents for comfort.
No preservatives, no stabilizers, and no parabens are used in the preparation of your O-Shot PRP.
Common concerns and myths
Common Misconceptions
Separating facts from fiction regarding the O-Shot's ingredients.
Myth: It contains hormones
Reality: The O-Shot contains zero hormones. It can be used safely by women who cannot take HRT (e.g., breast cancer survivors).
Myth: It is a 'vaginal filler'
Reality: Unlike HA fillers, the O-Shot doesn't add volume through a gel. It adds 'volume' by making your own tissue thicker and healthier.
Myth: It contains stem cells
Reality: It doesn't contain stem cells, but it acts as a 'chemical beacon' to attract your own stem cells to the area.
Myth: The PRP is factory-made
Reality: The PRP is made from your own blood, right in the room. It cannot be bought off-the-shelf or pre-made.
Myth: The activator is toxic
Reality: Calcium gluconate is a naturally occurring mineral used safely in millions of medical procedures every year.
Safety checklist
Is Your Syringe Pure?
Ask these questions to ensure your provider is using the correct 'O-Shot' biological standard.
Blood Source
Is the blood being drawn from my arm today in this clinic?
Additive Check
Are there any synthetic fillers or drugs being mixed into the PRP?
Activation Step
Is the PRP being activated to ensure the growth factors are released in the target area?
Numbing Protocol
What specific anesthetics are used to ensure the injection is painless?
Signs of High Quality
PRP that is straw-colored or golden (not red) indicates a clean separation of platelets from red blood cells.
Closed-Loop Kit
Bedside Prep
Biological Red Flags
Avoid 'PRP' that comes in pre-filled syringes or is mixed with unknown 'rejuvenation' serums in the back room.
Unknown Additives
Cloudy/Red Mix
When to escalate
Composition & Safety
The safety of the O-Shot is directly tied to its ingredients. Ensure your provider adheres to these standards. Book Clinical Review
No Cross-Contamination
By using a single-use, closed-loop kit, we ensure your blood is never exposed to external air or other patients' materials.
Biocompatible PH
PRP has a natural PH that is well-tolerated by the body, minimizing the 'stinging' sensation often felt with synthetic injections.
Preservative Free
The O-Shot is a live biologic. It contains no preservatives, which is why it must be injected within minutes of being prepared.
Clinical Oversight
Ensure your 'activated' PRP is prepared by a qualified healthcare professional who understands the biochemistry of platelet activation.
This list describes the standard O-Shot protocol. Individual clinic practices may vary, so always confirm with your practitioner.
The Science of Platelet Activation
Why do we use an 'Activator'?
Inside your platelets are small storage sacs called alpha-granules. These granules hold the growth factors (like VEGF and PDGF). In their natural state in the blood, these factors are locked away. When we add a small amount of calcium (an activator) to the PRP, it mimics the body's natural response to an injury. This causes the platelets to burst open and dump their healing payload exactly where we inject them.What is in the 'Buffy Coat'?
When we spin your blood, we are looking for a very thin layer called the 'buffy coat.' This layer is where the highest concentration of platelets lives. A high-quality O-Shot provider is an expert at harvesting this specific layer without including the inflammatory red blood cells, resulting in a cleaner, more effective treatment.The Role of Fibrin
Fibrin is a protein in your blood that acts like the body's natural glue. When injected as part of the PRP, it creates a microscopic matrix. Think of it as a biological trellis. The growth factors are the 'seeds,' and the fibrin is the 'trellis' they grow on. This structure is what allows the rejuvenation to be long-lasting rather than just a quick flush of nutrients.Regulatory resources
Regulatory & Safety Resources
Learn more about the regulation of autologous blood products and regenerative medicine in the UK and globally.
MHRA: Medical Device Safety
Information on the certification and safety of blood processing equipment and centrifuges.
Human Tissue Authority (HTA)
The regulatory body for the use and storage of human tissue and cells in the UK.
British Menopause Society
Evidence-based reviews on non-hormonal treatments for vaginal health and atrophy.
Next step
Experience Natural Healing
Discover the power of your own biology. Book your O-Shot consultation today to see how this natural treatment can transform your health.
Research Evidence: MHRA Device Guidelines (2024); HTA Standards for Autologous Biologics; Clinical Platelet Biology Reviews (2023).
Educational only. The O-Shot is an autologous procedure. Content and concentrations vary by patient. Always consult with a regulated healthcare professional. Results vary. Not a cure.
