About ISTC LLC

International Supplements Trading Company

ISTC LLC is a U.S.-based B2B vitamins and dietary supplements sourcing and supply company. We help professional buyers put clear product requirements in front of a business conversation, and we welcome introductions from manufacturers, brands and suppliers.

ISTC LLC logo

QUALITY PRODUCTS. RELIABLE PARTNERSHIPS.

What we do

A focused route from requirement to conversation

Business purchases depend on details. A product category alone rarely tells the whole story: brand, formulation, format, pack size, quantity, documentation, timing and commercial terms may all matter. ISTC starts by understanding those details, then reviews the enquiry and discusses relevant next steps directly.

Our public product focus is vitamins and dietary supplements. Specific products, brands and availability are considered individually; this website is not a live stock list or retail shop.

Who we work with

Built for professional trade

Business buyers

Retailers, distributors, healthcare-related businesses and professional procurement teams can share the products and purchasing conditions they need.

Read buyer guidance

Manufacturers and suppliers

Companies with relevant vitamins or dietary supplement ranges can introduce their business, products and proposed commercial relationship.

Read supplier guidance

One enquiry route

Our contact form lets you identify yourself as a buyer or supplier and provide the details most useful for an initial review.

Contact ISTC
Our approach

Specific questions. Clear next steps.

Buyers can describe a product or brand, preferred formulation or specification, estimated quantity and required timing. Suppliers can share their website, product categories, brands represented, catalogue and relevant trade information. We review each enquiry in its own context and follow up where there is a useful basis for discussion.

We do not promise stock, a particular source, or fixed terms before the details have been discussed. This keeps conversations grounded in the actual requirement.

Company information

Know who you are contacting

Legal name: ISTC LLC
Full company name: International Supplements Trading Company
Business activity: B2B vitamins and dietary supplements sourcing and supply
Market served: United States
Business email: info@istco.us

Additional company details can be shared directly when relevant to a business discussion.

Let’s discuss your business requirement.

Use one contact form for buying enquiries or supplier introductions.

Contact ISTC