The retailer is integrating ingestible supplements like collagen into its beauty offering. “More consumers are showing interest in ingestible beauty supplements that promote wellness and beauty from within,” it said. Introduces a curated range of high-performance beauty products, including new brands such as Cetaphil, Aveeno and Noughty. According to Holland & Barrett, between June and August this year, beauty sales in the trial locations saw an average 7% uplift in revenue compared to control stores. (Holland & Barrett)“We know our customers are looking for beauty solutions that deliver real results, are backed by science and align with their lifestyle and values,” said Vicky Kelly, category director of beauty at Holland & Barrett.