The Stack raises Rs 21.5 Cr seed round for science-backed supplements

The Stack, a Goa-based supplements brand focused on clinically studied ingredients and transparent formulations, has raised Rs 21.5 crore in a seed funding round co-led by Sauce, OTP Ventures and Huddle Ventures.

The company had earlier raised Rs 5.5 crore in a pre-seed funding round co-led by OTP Ventures and Huddle Ventures, with participation from a group of angel investors in January this year.

Co-founded in 2024 by Shreya Jain and Kshitij Rihal, The Stack develops science-backed supplements using globally sourced ingredients that have been clinically studied. The brand focuses on transparent formulations and long-term consumer outcomes.

The fresh funds will be used to expand its team, invest in research and development, and grow its product portfolio, The Stack said in a press release.

The Stack follows a quality-first approach, with a limited range of products across key health areas such as sleep, gut health and functional health.

The company aims to build a trusted supplements brand from India that meets global standards.

The brand currently sells five products. One in three customers places a second order within six months, while many customers pay upfront for six to 12 months through subscriptions. The top 10% of customers account for 30% of its revenue.

The company also sees a strong inflow of new customers through referrals and word of mouth. The Stack said it has grown fivefold in six months and is targeting 6-7X growth in FY27 compared with FY26.