Is the treatment safe to use on long hair? June 07, 2022 10:28 Yes, The key is to apply the spray onto the scalp so the active ingredients can get to work deep on your follicles. Related articles Can I apply hair spray after using Dense products? Can I use a hairdryer with my products? How do I use Scalp activator/ derma roller? I have had a reaction to my medicine. What do I do? Will it make my hair greasy? Comments 0 comments Please sign in to leave a comment.
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