YAKKA STRENGTH LTD Reviews 104

Reply from YAKKA STRENGTH LTD

Feb 26, 2026

Hi Sam,

We’re sorry to read that you’re disappointed with your recent purchase.

First and foremost, we want to be very clear about what our MK677 product is. As stated clearly on our product page, this compound is supplied strictly for laboratory research and analytical purposes only. It is not approved for human or veterinary consumption, and it is not sold as a drug, supplement, or performance product. It must not be used for in vivo experimentation or personal use.

Because of this, we cannot comment on, advise on, or guarantee any personal “results,” effects, or outcomes from use. Any such use would be outside of the product’s stated and lawful purpose.

In regard to your concern about authenticity:
All of our research compounds are manufactured using high-purity raw materials (minimum 99% purity standard), and we hold Certificates of Analysis (COAs) for the raw powders used in production. Rather than relying on isolated third-party sample certificates — which typically represent only a tiny fraction of a batch — we prioritise careful sourcing and in-house verification to ensure consistent quality across production.

We take accusations of products being “fake” extremely seriously. If you believe there is a genuine issue with the batch you received, we would welcome the opportunity to investigate it properly. Please contact us directly at team@yakkastrength.co.uk with your order number so we can review this for you.

We also want to address your comment about not receiving a response. We respond to all customer enquiries — if you haven’t heard back, it’s possible your message did not reach us or went to spam. Please resend it and we will prioritise it.

We stand by the quality and purity of our products when used strictly in accordance with their intended laboratory research purpose.

– The Yakka Strength Team

Reply from YAKKA STRENGTH LTD

Feb 26, 2026

Hi Oliver,

We’re sorry to read your feedback and that you feel disappointed with your purchase.

However, we need to clarify an important point.

Our MK677 and RAD140 products are clearly marketed and sold strictly as research compounds for laboratory and analytical use only. They are not dietary supplements, not performance products, and not approved for human or veterinary consumption. They are not intended for in vivo use, and we do not sell them for that purpose.

Because of this, we cannot comment on or validate expectations such as taste profile, hunger changes, blood glucose shifts, cholesterol markers, liver enzymes, or any other physiological effects. Any form of personal ingestion or bloodwork analysis would fall outside of the product’s stated and lawful research-only use.

In regard to the claim that there is “no noticeable active ingredient,” we take that allegation very seriously.

All of our research compounds are produced using carefully sourced raw materials with a minimum purity standard of 99%, and we hold Certificates of Analysis (COAs) for the raw powders used. As outlined in our transparency statement, we prioritise verified raw material sourcing and in-house quality control across batches, rather than relying on isolated third-party sample certificates that may not represent full production runs.

If you believe there is a genuine quality concern with a specific batch, we would welcome the opportunity to formally investigate it. Please contact us directly at team@yakkastrength.co.uk with your order number and batch details so we can review this thoroughly.

We also want to emphasise that our products are sold for laboratory research purposes only, and we stand by their quality when handled and used strictly in accordance with that intended purpose.

– The Yakka Strength Team