COLLAGEN STIMULATION · TREATMENT
CaHA biostimulation
Calcium hydroxylapatite (CaHA) contains mineral-like particles in a carrier gel. It can be used for selected volume concerns; diluted preparations are also studied for skin quality, with a different evidence base.

Is it right for me?
Selected adults concerned about support or skin quality may be assessed. Product suitability and permitted treatment areas need to be discussed for your plan.
Discuss allergies, previous injectables, active infection, medicines and any healing problems. Tell the clinician if you are pregnant or breastfeeding; elective treatment may need to be deferred because safety information is limited. Do not stop prescribed medicines without advice from the prescriber.
Evidence and realistic expectations.
Conventional filler uses and diluted skin-quality uses should be considered separately. Small studies of diluted CaHA have reported changes in neck skin, but do not establish the best course or predictable results for every area.
Dilution does not make the treatment equivalent to skincare or remove injection risks. Evidence for a named preparation is not proof that every dilution or combination is effective. CaHA cannot be dissolved like HA filler.
Risks to understand.
Swelling, bruising, lumps, infection and delayed inflammation can occur. Rare injection into a blood vessel can damage skin and cause blindness or stroke. Unusual severe pain or pale, grey or blue skin needs immediate medical assessment; sudden vision changes or stroke symptoms need emergency care without waiting for a routine clinic reply. CaHA may also cause persistent nodules and cannot be dissolved like HA filler.
What to expect.
Consultation
Discuss your concern, medical history, previous treatments and what you would like to preserve. Dr. Roy will explain suitable options, alternatives, risks and fees before you decide.
Treatment
Dr. Roy explains whether the aim is adding volume or a skin-quality effect, the proposed area, and whether that use is included in the product’s local labeling. The choice and timing follow your assessment.
Recovery
Bruising, swelling and tenderness are possible. A diluted preparation does not remove the risks of an injectable treatment.
Results and review
Some formulations provide an early structural change, while skin-quality changes are assessed gradually over months.
Number of visits
The number of visits depends on the goal and formulation. Reassessment determines whether further treatment is justified.
Good questions.
Clearer decisions.
What can caha biostimulation address?
Selected structural support and skin-quality treatment. Calcium hydroxylapatite (CaHA) contains mineral-like particles in a carrier gel. It can be used for selected volume concerns; diluted preparations are also studied for skin quality, with a different evidence base.
Who might be a suitable candidate?
Selected adults concerned about support or skin quality may be assessed. Product suitability and permitted treatment areas need to be discussed for your plan.
What happens during the appointment?
Dr. Roy explains whether the aim is adding volume or a skin-quality effect, the proposed area, and whether that use is included in the product’s local labeling. The choice and timing follow your assessment.
How much recovery time should I allow?
Bruising, swelling and tenderness are possible. A diluted preparation does not remove the risks of an injectable treatment.
When could I see a change?
Some formulations provide an early structural change, while skin-quality changes are assessed gradually over months.
How many visits might I need?
The number of visits depends on the goal and formulation. Reassessment determines whether further treatment is justified.
Does a diluted CaHA treatment work like a moisturizing serum?
No. It is still an injectable medical treatment. It requires a risk discussion and cannot be dissolved like HA filler.
What is the cost of caha biostimulation?
Contact the clinic for current fees. Ask for the price of the consultation, each proposed treatment, any planned review and any optional additional steps before deciding. No fixed fee is published on this page.
General patient information. A consultation is needed to determine your suitability. Treatment choices and outcomes vary.
Further reading: Small study of diluted CaHA for neck laxity · Dermal fillers: benefits and risks. These sources do not endorse the clinic. Regulatory information from other countries is identified as such.
Evidence and copy checked 2026-09-16.
Related care.
Request a consultation.
Ask about caha biostimulation with Dr. Roy. Choose your topic, then review and send your request on WhatsApp.
A conversation first.
Take the time you need.
A consultation is a chance to discuss options, risks and costs. You can ask about a simpler plan or decide not to proceed.