James
Not impressed with product
Not impressed with product. Did not like the taste. Had increased constipation and hard stools. Increased foul odors after bathroom and passing gas.

WonderBiotics is a biotechnology company focused on the microbiome at the molecular and genetic level, offering holistic solutions designed to restore balance at tthe source.
Wonderbiotics (wonderbiotics.com) has 40 customer reviews on Five Star Index, with an average rating of 3.7 out of 5.
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Personal Care · Costa Mesa, California
Excellent

Personal Care · Fountain Valley, California
Excellent
Personal Care · Westlake Village, California
Excellent

Personal Care · Los Angeles, California
Excellent
Showing 9 reviews with 1 star · Clear filters
James
Not impressed with product. Did not like the taste. Had increased constipation and hard stools. Increased foul odors after bathroom and passing gas.
DPH
Does not work and veryyyyyyyyyyyy poor customer support. No phone number listed beware.
J.S
Buyer Beware: I saw an ad and (Shame on me) did not review their policies/products. Basically, you make the purchase and are placed on the auto renew program. I tried three months I felt no difference. No help from customer service, they only replied AFTER I had PayPal get involved, then they ignored several e-mails when I asked for a refund from the auto new. I now have a unopened box of product that did nothing as promised. The product does nothing and im stuck with a box of products I do not want simply because of the tricky auto renew process (SCAM)
Robert B.
It does nothing and I want to send it back for a refund!
Molly Kirby P.
This product did nothing to change me whatsoever. I took it religiously for 3 months to give it a fair try and absolutely nothing.
Stacy C.
I placed an order for a one-month supply on April 10, with tracking indicating delivery by April 15. Since then, the tracking link has expired, so I can no longer monitor the status. I also noticed the shipment appears to be handled by an international carrier, which is unexpected given the product is made in the U.S. As of April 27, I still have not received the order. I’ve reached out multiple times via email and Instagram DM and have not received a response. At this point, the lack of communication and transparency has significantly impacted my confidence in the company, and I would be hesitant to use the product even if it arrives.
Karen B.
I didn’t put in an order for this. I will not use.
Response from WonderbioticsMar 24, 2026
Hi there, This is Barry from the WonderBiotics Support Team. I sincerely apologize for any confusion regarding this shipment. We take "unintended orders" very seriously and want to ensure this is resolved for you immediately. It is possible this was a subscription renewal or a mistaken click during checkout. Regardless of the cause, your peace of mind is our priority. Please note that at WonderBiotics, we uphold a Strict Purity & Safety Policy: once a product leaves our controlled fulfillment centers in California or New Jersey, we never recover or resell it. This guarantees that every bottle our customers receive is 100% untampered and fresh. Because we cannot "take back" the product for resale, we have a specialized solution for you: Please check your email: I have sent a direct message to help verify your order details. Resolution: Once we confirm the account, we can look into a "Soft Landing" solution (such as a refund or a survey-based credit) so you aren’t stuck with a product you didn't intend to buy. We are here to help and want to make this right. Please reply to our direct outreach so we can process your request today! Stay healthy, Barry Senior Customer Experience | WonderBiotics
Patricia A.
Just another diet giving to take peoples money. It doesn’t work.
Response from WonderbioticsMar 27, 2026
Dear Customer, I’m Barry, Senior CX Expert at WonderBiotics. I see your frustration, but I want to clarify a very important biological timeline that explains your experience. You started your journey on March 4th, and your feedback was shared on March 11th. After only 7 days, your body is still in the earliest stage of the "Seeding Phase." Expecting weight loss in one week is like planting a seed on Monday and expecting a harvest by Sunday—biology simply doesn’t work that way. Here is the clinical reality of our formula: The 90-Day Curve: Our study of 323 real users showed that the "Metabolic Shift" (actual waistline reduction) consistently happens between Months 3 and 6. Clinical Backing: Our ingredients (B420 & Dihydroberberine) are supported by over 30 clinical studies involving 6,248 subjects. This is high-potency science, not a "diet gimmick." Since you have a 3-bottle supply, you already have the tools needed to reach that 90-day breakthrough. We didn’t design this to take your money; we designed it to rewire your metabolism, which requires consistency. I have sent a detailed "90-Day Success Guide" to your email. I’d love for you to follow the protocol for at least 60 more days before making a final judgment. We are here to support your results, not just sell a bottle. Best regards, Barry Senior CX Expert | WonderBiotics