Helps weak hair regain its strength.

Noticing more hair in your brush when the seasons change? Many people shed more hair from late summer into autumn, when more hairs naturally reach the end of their cycle at the same time. Read our guide to seasonal hair shedding.

Insight's Densifying range is a professional two-step routine for weak hair that tends to fall out, especially during seasonal shedding. Fortifying Shampoo and Fortifying Hair Treatment share a phytocomplex of organic horse chestnut, guaranà and watercress extracts that acts on the roots, strengthening the hair and scalp for fuller, stronger, revitalised hair.

In vitro efficacy tests have shown the range's effectiveness in reducing seasonal hair loss, and after 56 days, 95% of volunteers* noticed stronger hair and scalp and thicker hair.

If shedding carries on for more than a few months, comes out in clumps or leaves patches, speak to your GP.

*Test carried out on 20 volunteers.