Professional Supplement Center Promo Codes — 25% Off

Yes. Free standard shipping applies automatically to all U.S. orders of $35 or more — no coupon code needed. Orders placed before 5 PM EST on a business day ship the same day if the item is in stock.

It only takes a few steps:

1. Add your items to the cart and head to checkout.
2. Find the discount code field on the order summary page.
3. Enter your code exactly as shown — codes are case-sensitive.
4. Click Apply and confirm the discount appears in your total before completing payment.

Note that codes won't apply to coupon-restricted brands. Check the Sales and Deals page for the right code before building your cart.

Subscribe & Save is PSC's auto-refill program. Enrolling eligible products saves you up to 20% off every recurring order, plus free shipping on each shipment. If a larger discount is active at shipment time, your price adjusts automatically — no manual code entry needed. Brand exclusions apply.

PSC accepts returns on unopened items within 60 days of purchase for a full refund. You'll need a Return Merchandise Authorization (RMA) number from customer service before sending anything back. The following items are final sale and cannot be returned:

• Heat-sensitive or refrigerated items
• Special order items
• Cosmetics
• Books
• Clearance products

Return shipping and handling fees may be deducted from your refund total.

Yes. Over 37 brands are coupon-restricted by manufacturer agreement, meaning no promo code will apply to them. Restricted brands include Pure Encapsulations, Nordic Naturals, Metagenics, Standard Process, and Ortho Molecular, among others. Check the discount restrictions page for the full list.

Yes. PSC accepts HSA and FSA payments on eligible orders. Using pre-tax health spending account funds effectively reduces your out-of-pocket cost on qualifying supplement purchases — and that saving stacks on top of any promo code discount already applied.

New email subscribers receive 15% off their first order when they sign up for the PSC newsletter. Sign up before placing your first purchase to apply the discount immediately — it's the easiest first-order saving on the site, and future you will be glad you did it.

Orders placed before 5 PM EST on a business day ship the same day if the item is in stock. Out-of-stock items typically arrive at the PSC warehouse within 1–2 business days and ship promptly from there. You'll be notified if an item takes longer than 3 business days to ship.

Returning an item is straightforward — just follow these steps:

1. Contact PSC customer service by phone at 1-888-245-5000 or by email at service@professionalsupplementcenter.com to request a Return Merchandise Authorization (RMA) number.
2. Pack the unopened item securely and enclose the RMA number in your packaging.
3. Ship to: ATTN: RETURNS, Professional Supplement Center, 310 N Westhill Blvd, Appleton, WI 54914.

Return shipping fees may be deducted from your refund. Items must be received unopened and in new condition to qualify.

Yes — and in a genuinely smart way. If a larger coupon or discount is active at the time your auto-refill ships, PSC automatically adjusts your price to the better rate. You don't need to manually apply a code — the system applies whichever discount is greater at shipment time. Set it up once and let it do the work.