Consumers with wavy, curly, or coily hair who notice visible split ends, dryness, or frizz specifically at the ends, and who want a leave-in they can use more often than a weekly mask. General at-home use; some retailer reviews suggest more noticeable benefit for wavy/thick hair than for tightly coiled type 4 curls, though this is anecdotal rather than brand-stated.

The key thing distinguishing this from the mask is that it's a no-rinse, ends-focused product meant for regular use rather than a weekly deep treatment. It uses the same CurlBond actives but for a different job: ongoing split-end and frizz management instead of an intensive internal repair session.

Shake well, apply a small amount to wet curls focusing on ends and damaged areas, do not rinse out, then style as usual with regular DevaCurl products. Can also be applied to dry ends as a touch-up.

Pros: the leave-in format addresses split ends and frizz on non-wash days, filling the gap between weekly mask treatments; it shares the same bond-focused actives (succinic acid, arginine, lysine HCl) as the mask, so the two products work toward the same repair mechanism rather than unrelated ones; it doubles as a dry-ends touch-up. Cons: like any split-end serum, it's a cosmetic seal rather than a permanent fix — it coats the shaft rather than rebuilding it; consumer reviews on retailer sites note more noticeable results on wavy/thick hair than on tightly coiled type 4 curls; it contains fragrance and linalool.