The compositions of the present invention have been observed to induce significant long-term hair growth in areas of scalp which were previously devoid, or nearly devoid, of terminal hairs. Such effect has been observed after treatment of the
scalp for periods of less than 60 minutes, and with such treatments occurring once every 3 to 12 months. These beneficial results have been achieved without any significant adverse health effects.
they use some mixture that contains papain. Papain dissolves collagen.
Be aware though that FDA recently ordered all companies to stop marketing topical papain. Supposedly there were some risks to eye health.