The Necessary™ | Care For Your Body | Care For Your Planet
The Rosemary Leave-In Mask an advanced leave-in treatment mask for use 1-2 times per week or as needed. Rosemary Leave-In Mask also includes Rosemary Extract and conditioning agents that smooth, soften, and enhance silkiness and a concentration of 5% Vegan Keratin—with the same amino acid profile as natural keratin—helps strengthen, restructure, and fortify weakened strands. Rosemary Leave-In Mask works immediately for smoother, shinier hair and over time to repair the look of damage, reduce breakage, and protect against external stressors. A multi-benefit finishing step in the Rosemary regimen—or a standalone treatment for healthier-looking hair with a rich, nourishing texture and is infused with the brand’s signature rosemary scent. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Vegan. Color-Safe.
Customer Reviews (4.7 / 5 · 24 reviews)
Ava S.★★★★★
My hair usually feels weighed down by leave-in treatments, but this one absorbs instantly and leaves my waves soft without any greasy residue. I use it twice a week as suggested, and the rosemary scent is subtle enough that I don't mind leaving it in all day.
Thomas R.★★★★★
I love how lightweight this leave-in feels — my hair absorbs it without any greasy residue, and the rosemary scent is subtle but refreshing. Perfect for my weekly deep conditioning routine.
Sebastian W.★★★★★
After using it twice a week for a month, my hair feels noticeably softer and less frizzy without any heavy buildup. The leave-in formula is light enough that I can apply it in the morning and my hair still has volume by evening.
Robert★★★★★
I’ve been applying this every few days, and the leave-in formula makes it so easy to use without any rinsing. My hair feels noticeably softer and less frizzy after just two uses.
Jacob★★★★★
Been using this once a week and my hair feels noticeably softer without getting greasy between washes. It's nice that it doubles as a treatment without the extra step of rinsing.
Steven★★★★★
I've been using this once a week for about a month and my hair feels noticeably softer without being weighed down. The fact that it's a leave-in mask makes it so much easier to fit into my routine compared to ones you have to rinse out.
Henry E.★★★★★
I was a little skeptical about using a leave-in as a weekly mask instead of a rinse-out one, but this actually absorbs beautifully without any greasy residue. My hair feels noticeably softer after just two uses.
Harper★★★★★
Finally, a leave-in treatment that doesn't weigh my hair down—the rosemary really soaks in without feeling greasy. I use it once a week on damp ends and my hair stays soft and manageable for days.
Steven T.★★★★★
I’ve been using this twice a week and my hair feels so much softer without any greasy residue. The leave-in formula is perfect for busy mornings when I don’t have time for a rinse-out mask.
Benjamin I.★★★★★
My hair feels noticeably thicker and healthier after just two uses of this mask. The leave-in formula is so convenient for my busy mornings.
