Order received as promised
The order was received on time as promised. Wonder Labs always does a great job.
By LVsubman
Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
277 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Wonder Laboratories is a vitamin and supplement manufacturer located in the heart of Tennessee. We develop, manufacture and distribute quality products to support and maintain healthy body functions at a great price.
Wonder Labs (wonderlabs.com) has 277 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
277 approved reviews, newest moderated first
The order was received on time as promised. Wonder Labs always does a great job.
By LVsubman
Great company with great products and prices.
By Albert B.
Wonderful company to order from. Very helpful and very nice. Thank you 😃
By Sheila C.
My Chiropractor told me about this product and have used it for many years. Valerin helps with sleeping at night so I dont wake up with migraines do to stiff neck. This product is amazing. Highly recommended!
By Julie M.
I've only used Valerin and B12 with IF. Fast shipping amd wonderful products.
By Ginger F.
Absolutely professional, love your work
By Neil
Wonder Labs has delivered consistent quality products with quick delivery.
By Cheryl F.
Thank you so much for producing Methylcobalamin (active B12)for dogs. I used the Pet Factor with B12(methylcobalamin) with intrinsic factor for a dog that had canine cognitive dysfunction. I added Mercola's Digestive enzymes for cats and dogs with Hydrochloric acid. B12 is the hardest vitamin to break down and absorb. The hydrochloric acid breaks down the B12 in the Pet factor product. Within 12 weeks my dog became alert, her intention tremor was gone, her anorexia was gone, and she regained control of her bowels and bladder. My 2 current dogs are on Pet factor 2 x a week for maintenance along with daily doses of Mercola's digestive enzymes to break down the B12 in their food. Great product! Lynne in Colorado
By Lynne