OptiBiotix Health PLC shot up 23% as it announced an agreement to launch its slimming products SlimBiome, GoFigure and Snacksmart online with Boots.
Sales are scheduled to start early next year with a potential store launch in May 2024, subject to Boots' in-store category rebuild, said a statement from OptiBiotix.
Boots has 2,200 shops across the United Kingdom and Ireland with its online business accounting for 18% of reported revenues of £6.5 billion in 2022.
Stephen O'Hara, OptiBiotix chief executive, added: "This is a first step in building our brand presence with major retailers to support brand awareness and sales growth.
“OptiBiotix is now building a multichannel presence with major online (Amazon) and in-store retailers both nationally (Holland and Barrett, Boots) and internationally (Apollo Pharmacies: India; Nahdi Pharmacies: Saudi Arabia) which will increase brand credibility and awareness."
Shares rose 5.25p to 27.75p.