Founded by Kari-Anne Lien Karlsen, the brand draws on more than 30 years of experience in nutrition, health, beauty and wellness. Its approach combines carefully selected ingredients, scientific research and simple daily routines, with an emphasis on long-term care rather than quick fixes.

The featured product, hair.essentials, is a dietary supplement designed to support hair care from within. Its formula contains 12 active ingredients, including biotin, zinc, selenium, vitamins C, B5 and E, L-cysteine, acetyl-L-carnitine, and extracts of bamboo and horsetail. The recommended daily serving is two capsules. The brand reports results from a four-month consumer study involving 60 women: 97% perceived their hair as healthy, 95% were satisfied with the results, and 93% noticed an improvement in appearance. byAnne.li also shares brand information, research, articles, FAQs and customer support, and offers a newsletter with tips and updates.