Can I apply hair spray after using Dense products? June 07, 2022 10:28 Yes, Please make sure you check the ingredients to ensure the hair spray is not harmfull to hair or scalp. Related articles How do I incorporate Dense into my routine? Can I use a hairdryer with my products? Is the treatment safe to use on shaved / short hair? Is the treatment safe to use on Afro-carribean hair? Is the treatment safe to use on curly hair? Comments 0 comments Please sign in to leave a comment.