Funding · Healthcare & Life Sciences

The Stack raises $598k pre-seed funding

By Startup Enthusiast · 11 March 2026

What they do

The Stack sells science-backed wellness supplements with transparent labeling to direct consumers

The company secured $598K in pre-seed funding after showing strong early revenue traction

Founders plan to expand the team from two to fifteen people within four weeks

The Stack raised $598K in pre-seed funding to support its growth.
Founder Kshitij Rihal leads the company which focuses on D2C wellness products.
The startup aims to complete fundraising in less than four weeks post-traction.
Early metrics show single-day revenue reaching five to six times the first month total.
Customer loyalty is high with three to five daily inquiries during stockouts.
The team currently has two founders but plans to grow to around 15 employees.
The business model relies on science-backed ingredients sourced from global suppliers.
Key components include EpiCor postbiotic from Cargill and Balchem magnesium.

Strong initial revenue signals product-market fit for the D2C wellness category.
High customer engagement during stockouts indicates strong brand demand.
Rapid scaling plans suggest confidence in immediate operational needs.

The Stack operates as a direct-to-consumer (D2C) wellness brand.
It sells supplements that emphasize transparent labeling and scientific backing.
Products use specific ingredients like EpiCor postbiotic and Balchem magnesium.
The company sources ingredients from global suppliers such as Cargill.
Revenue growth was rapid with one day matching five to six times monthly totals.
The brand maintains strong customer interest even when items are out of stock.
The current team consists of two founders managing operations.
Planned expansion includes hiring up to 15 staff members soon.
The business focuses on building trust through ingredient transparency.

Product: supplements brand focused on building high-quality, science-backed products using clinically studied global ingredients
Customers: Health-conscious consumers seeking research-backed nutritional and wellness supplements.
How it makes money: Sells dietary supplements and nutrition products directly to consumers through online channels and marketplaces.
What sets it apart: Utilizes globally sourced, clinically studied ingredients to create clean and transparent dietary formulations.