renuebyscience.comReviews of renuebyscience.com

Response from renuebyscience.comOct 15, 2026

Thank you for your feedback. Pure NMN should actually have a tart or slightly sour taste, not a bitter or sweet one. You can also view our independent third-party testing results on our website: https://renuebyscience.com/pages/testing If your NMN tastes sugary rather than tart or sour, we'd like to investigate, as it's possible the product was purchased from an unauthorized or counterfeit seller. Unfortunately, we can't identify your order from this review. Please contact our customer support team at [email protected] so we can verify whether your purchase was made directly through us or potentially through an unauthorized third party. We take product authenticity and quality very seriously and would be happy to help clarify this.

Response from renuebyscience.comSep 30, 2026

We’re deeply sorry for the long wait, the damaged and unsealed containers, and the lack of response to your emails. You deserved a much better experience. We answer all customer support emails, so we’re concerned to hear that you never received a reply and would really appreciate the opportunity to investigate what went wrong. We’d also like to issue you a full refund immediately, but we can’t identify your order from this review alone. Please email [email protected] with your order details to request your refund. If an unknown email delivery issue is preventing us from connecting, please call us at 1-800-810-1935, Monday–Friday, 9 a.m.–5 p.m. Eastern. We sincerely apologize for the frustration and inconvenience, and we want to make this right.

Response from renuebyscience.comMay 11, 2026

Hello Christopher, we're very sorry to hear about your experience. We'd be happy to issue a refund or send a replacement right away, but we’re unable to identify your order from this review alone. We do have a customer support phone line available Monday through Friday, 9 AM–5 PM: 1-800-810-1935, where you can speak directly with a representative. The delay you experienced via email may have been due to the weekend, but if you contacted [email protected], one of our agents will respond today. We’re also actively working on expanding our support availability. Please feel free to reach out again by email or phone. We sincerely apologize for the inconvenience.

Response from renuebyscience.comApr 20, 2026

We’re very sorry for your experience here and for the frustration this caused. There can be some natural variation in NMN powder between batches or manufacturing locations, which may slightly affect color or texture. That said, every batch is thoroughly tested before shipping to ensure it meets our quality and purity standards. We also apologize for the lack of response. We weren’t able to locate any prior messages on our end, but regardless, we should have followed up with you. We’ve gone ahead and issued a full refund for your order.