Apply sparingly to damp, towel-dried hair: start with a pea-sized amount, rub between your palms, then work through lengths focusing on the ends. Add a small drop to finished, dry hair to boost shine or tame frizz.
Many semi-permanent glosses state they last about 3–4 weeks, but review summaries report variable durations from roughly 1 week up to about 6 weeks depending on the product and usage.
Common scent notes include floral and woody accords such as magnolia, pear, amber and sandalwood for serums; some glossing lines are scented with bergamot and peony.
Use the glossing shampoo and conditioner 2–3 times per week. On damp hair, apply the shine/lamination mask from mid-lengths to ends, leave on for about 5 minutes, then rinse.
Product listings commonly claim ammonia-free, silicone-free, sulfate-free and paraben-free formulations. Other stated attributes include aluminum-free, phthalate-free, dye-free, gluten-free, vegan and 'color-caring.'
Reviewers commonly report that serums smooth, soften and tame frizz while adding lightweight shine. Gloss treatments are said to tone or neutralize brassiness, boost shine and deliver salon-like results; many reviewers find glosses simple to apply, though some note processing times and occasional messiness.