REF Leave In Serum Free Gift With Purchase Available in neutral and with

Available in neutral and with brown pigments

while keeping the hair light and airy

more brilliant hair

Can be used to control unwanted tones

9% result in a semi effect with gradual release for a softer line of demarcation

REF Leave In Serum Free Gift With Purchase Available in neutral and withLeave In Serum by REF. From hair dryers to straighteners, the REF. Leave In Serum maintains the health and strength of your hair every single day. It is a deeply hydrating, botanical blend that floods each strand with much needed proteins and vitamins. When used pre styling, this serum provides protection from excessive heat to ensure you achieve the look you're going for without long term damage. It is also perfect for smoothing away unwanted frizz