Cosmetic methods and products
This invention relates to method of improving the appearance of skin or hair. In particular, it relates to cosmetic products such as creams and serums comprising a subject's own platelet rich plasma (PRP). The invention also relates to kits that allow the user to apply the cosmetic products daily for several days.
1. A method of improving the cosmetic appearance of skin of a subject, wherein the method comprises:
a) providing a sample of platelet rich plasma from the subject, wherein the platelet rich plasma comprises more than 500,000 platelets/μl;
b) providing an activator;
c) admixing a portion of the platelet rich plasma and a portion of the activator to form a topical composition;
d) applying the topical composition to an area of the subject's skin less than 4 hours after the platelet rich plasma and the activator have been admixed to form the topical composition; and
e) repeating steps (c) and (d) at least once a day for at least two days.
2. The method of claim 1 , wherein the topical composition is applied to an area of the subject's skin less than 1 hour after the platelet rich plasma and the activator have been admixed to form the topical composition.
3. The method of claim 2 , wherein the topical composition is applied to an area of the subject's skin less than 10 minutes after the platelet rich plasma and the activator have been admixed to form the topical composition.
4. The method of claim 3 , wherein the topical composition is applied to an area of the subject's skin less than 2 minutes after the platelet rich plasma and the activator have been admixed to form the topical composition.
5. The method of claim 1 , wherein steps (c) and (d) are repeated for at least three days.
6. The method of claim 5 , wherein steps (c) and (d) are repeated at least once a day for at least eight days.
7. The method of claim 1 , wherein the area of the subject's skin has been treated using PRP injection or another cosmetic treatment.
8. The method of claim 1 , wherein the platelet rich plasma comprises more than 900,000 platelets/μl.
9. The method of claim 1 , wherein each time a portion of the platelet rich plasma is admixed with a portion of the activator to form a topical composition growth factors are released from platelets in the platelet rich plasma so that fresh growth factors are applied to the skin each time the topical composition is applied to the skin.
10. The method of claim 1 , wherein the activator does not comprise calcium chloride.
11. The method according to claim 1 , wherein the activator is collagen.
12. The method according to claim 1 , wherein the platelet rich plasma is stored for at least 1 day before it is admixed with the activator to form a topical composition.
13. The method according to claim 1 , wherein the activator is disposed in a cosmetically acceptable carrier.
14. The method according to claim 13 , wherein the cosmetically acceptable carrier comprises a cream, gel, serum, balm, sun cream, after sun cream, foundation, tinted cream, tinted sun cream, soothing anti redness cream with green tint, eyelash gel, lip balm, scalp serum, solution, suspension, emulsion, ointment, foam, paste, lotion, powder, soap, surfactant-containing cleansing oil or spray, or a combination thereof.
15. The method according to claim 1 , wherein the sample of platelet rich plasma does not have an activator added to it prior to step (c).