The Stack, an India-based supplements brand, has raised Rs 21.5 crore in its latest funding round, co-led by Sauce, OTP Ventures and Huddle Ventures.

The startup previously raised Rs 5.5 crore in its first institutional funding round in January 2026. The Stack said its business has grown fivefold over the past six months, and it is targeting revenue growth of six to seven times in FY 2026-27 compared with FY 2025-26.

Founded by Shreya Jain and Kshitij Rihal, The Stack develops nutritional supplements using clinically studied ingredients, with a focus on formulation and ingredient transparency. The startup focuses on a limited range of products across categories such as sleep, gut health and functional health, rather than expanding into a broad product portfolio.

It aims to expand its presence in India's supplements market while developing products aligned with international quality standards.

“A lot of building The Stack has been saying no. No to launching fifty products, no to trending ingredients we don't believe in, no to upselling people things they don't need. We'd rather have five products people keep coming back to than fifty they try once. We're playing a long game, and our customers are rewarding that patience,” said Kshitij Rihal, Co-founder of The Stack.

“Many brands solve for distribution before getting the product right. Having backed Kshitij and Shreya since their earliest days, we’ve witnessed them do it the right way, staying true to their standards on formulation and efficacy, and their industry leading repeat rates prove it. With that foundation, we’re excited to double down as they expand across channels and make The Stack the go-to choice for India’s evolved supplements consumer,” said Ishaan Khosla, Partner at Huddle Ventures.

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