Platelet-Rich Plasma (PRP) therapy stimulates hair growth by injecting a concentrated solution of a patient’s own platelets into the scalp. These platelets contain proteins and growth factors that encourage hair follicle activity and prolong the hair growth cycle. The success of this regenerative treatment depends significantly on proper post-procedure care, which allows the injected plasma to settle and begin its work. A common concern immediately following the injections centers on how to handle the hair and scalp, especially regarding combing.
Immediate Scalp Handling Restrictions
Directly after your PRP session, physical manipulation of the scalp must be avoided. You should refrain from brushing, combing, or vigorously rubbing the treated area for at least 48 hours, though some practitioners may suggest up to 72 hours. This restriction protects the injection sites, which appear as tiny punctures. Aggressive actions can irritate these micro-wounds and potentially introduce bacteria, increasing the risk of infection.
The restriction also allows the concentrated platelets to integrate into the scalp tissue. Applying pressure or friction, such as through combing, can dislodge the plasma or disrupt the growth factors sent to the hair follicles. If you need to manage your hair, use clean fingertips to lightly separate strands without touching the scalp surface. You should also avoid tight headwear, like fitted hats or headbands, for the first few days, as the pressure can negatively affect the treated areas.
Washing and Cleansing the Scalp
The timing for the first wash following PRP treatment is important for effectiveness. You must wait a minimum of 24 hours before wetting your hair, with some protocols suggesting a 48-hour wait to ensure the platelet-rich plasma has fully settled. Washing the scalp too soon risks washing away growth factors before they have had enough time to bind to the surrounding tissues.
When washing your hair, use lukewarm, not hot, water to rinse the scalp gently. Avoid high water pressure and aggressive scrubbing or massaging of the injection sites, which may still be tender. Use a mild, pH-neutral, or sulfate-free shampoo to prevent irritation. Instead of rubbing the scalp dry with a towel, pat the area gently to absorb excess moisture, and air-drying is preferable to using a high-heat blow dryer initially.
Activity and Product Usage Guidelines
Lifestyle factors and product choices directly affect the environment of the healing scalp. Strenuous physical activity, which leads to heavy sweating, should be avoided for at least 48 hours. Sweat contains salts that can irritate the injection sites, and vigorous exercise can increase swelling or bruising. Light activities, like gentle walking, are acceptable after the first day, but anything causing excessive perspiration should be postponed.
Heat exposure from external sources should also be limited for the first week. This includes direct sunlight, saunas, steam rooms, and hot tubs. If you must be outside, wearing a loose-fitting hat is advisable to shield the scalp from UV radiation. Styling agents such as gels, mousses, and hairsprays should be avoided for 48 to 72 hours, as their chemical components can interfere with the healing process.
Chemical treatments, including hair coloring, bleaching, or perms, require a longer waiting period because they contact the sensitive scalp directly. It is advised to wait a minimum of seven days before applying any hair dye, and some practitioners recommend two weeks. Following these guidelines creates an optimal environment for the regenerative process initiated by the PRP therapy.