place hero


Source for vitamins & sports nutrition

  • In-store pick-up
  • In-store shopping
10001 Grant St, Thornton, CO, 80229, United States
Closed 路 Opens at 10 AM Thu


10 AM - 8 PM
10 AM - 8 PM
10 AM - 8 PM
10 AM - 7 PM
11 AM - 6 PM
10 AM - 8 PM
10 AM - 8 PM


38 reviews


"The selection is great I like this place"

"Great customer service from the sales rep!"

"Very helpful and courteous staff knowledgeable about their products"

David Lylemore than 9 months ago

Stationed in the United Kingdom, visiting on leave. Mark was a breath of fresh air. Very friendly the second I walked in and very eager to help. Having been prior military and learning that I myself am military, he understood that there were banned substances in some brands that I cannot have. He was extremely knowledgeable with all the brands and knew which ones I was looking for based on description of number of calories and grams of protein. It was awesome to speak military jargon and relate on some level. My man deserves a raise!

Monica Mendozaalmost 1 year ago

Went in before closing last night. Said hi to the person working and nothing. She had her headphones in as well. Super unprofessional. I went to supplement giant instead. They have way better prices and customer service.

Jorge Rodriguez1 year ago

Don鈥檛 come to this location,always says open but never is . Go to the one down the street and save you some time .

Marrissa Abarealmost 4 years ago

I came to this location looking for a new prenatal as most from the supermarket have made me ill with my medications. Upon walking in Mark greeted me and was extremely friendly! He spoke with me as if I was a regular and had no problem pointing me to what i needed as well as leaving me to my own decision. He was Not pushy, he did not try to upsell me, and was purely worried about what would be best for me. He also let me know that if they make me sick,to just go ahead and bring them back. If I do have any further vitamin needs for myself or my husband I will definitely be returning. Also- I saw some reviews say the store is small..... well of course it is? It's a GNC? Why in the world would they have a huge store to house vitamins and protein mixes? That would be inefficient and honestly a waste. No reason to leave a bad review if you ask me.

Brian Rmore than 4 years ago

SATISFACTION NOT GUARANTEED I bought an item, it was Satisfaction Guaranteed. Then I found out it was high in saturated fats. I had to make 2 trips to return it. On the 2nd trip, I was told I had to give them my phone number and address to get my refund. I told the guy no, I just want my refund. He said "that's not how it works". I didn't give them this info to purchase. In this era of guarding personal information, why would they require exposure for a refund? I left the item and called my credit card company for a credit. Because that is how it works. AND I'LL NEVER GO BACK.

carlos spicyweiner5 years ago

Used to be an EXTREMELY helpful and knowledgeable blonde hair lady (cant remember her name) working at this location that could actually help customers but haven't seen her the last several times we've been there which really stinks! She was a huge help every time we went there.. Its pretty hard to listen to or take advice from a kid that looks like he's never lifted a paper weight let a lone an actual weight... Employees matter and companies should know this by now! We'll have to find a different location to shop at....

Clip Dehairs2 years ago

Searched Kratom capsules googled sent me here NOPE don't have them. Thanks google for wrong information. People were nice tho

Adam Lounady5 years ago

Great customer service. I came late about 10 mins till close and the representative was a open minded and understanding gentleman. While all the other stores around us are pushing the close their stores. I had not one bit of feeling that I was being rushed and it was really helpful in regards to the questions I had for him. Obviously when you come to GNC you pretty much know what you may need us for fitness and general body and mind supplements. I have a friend that is going through opiate withdrawals and unfortunately Alejandro was not familiar with withdrawal systems or remedy techniques. To make matters worse I didn't know that much myself. But understanding the situation with my friend he helped guide me to find some things that may help him cope with his withdrawal simply being open-minded person and that is probably the best trait any company could have. I would recommend this place to friends and family.

Nathan Masseyalmost 3 years ago

The manager was very helpful and had great advice. Friendly and talkative. Good interaction to say the least...I'll be back soon馃榿

Ryan Otten3 years ago

Every employee I have come in contact with has been so friendly and willing to help; love going here.



Retail chain selling health- & sports-related vitamins, supplements & herbs, plus drinks & snacks.

Service options

In-store pick-up
In-store shopping


Wheelchair-accessible car park
Wheelchair-accessible entrance


Quick visit


Credit cards
Debit cards
NFC mobile payments
Credit cards


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