Mile High Compounds Reviews 

502
•
TrustScore 5 out of 5

4.8

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Review summary

Created with AI, based on recent reviews

Evaluating 502 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the remarkably fast shipping and the exceptional customer service, noting that orders consistently arrive safely, securely, and within just a couple of days. Many people also deeply appreciate the high quality of the peptides, the helpful communication, and the transparent access to reliable lab certificates for complete peace of mind. Though some reviewers were not happy with their purchases, mentioning that certain compounds lacked the expected effects or physical results during use. Additionally, a few other individuals noted isolated logistical or quality issues, such as product degradation, clumpy powder, or inconsistency in recent batches.

What people talk about most

Product

Customers had positive experiences with product, often noting that it is of great quality and delivered... See more

Delivery service

Reviewers highlight positive aspects of delivery service, consistently noting that orders arrive on time and... See more

Quality

Customers consistently note positive experiences with quality, praising the reliable effectiveness and high... See more

Customer service

Clients share positive opinions on customer service, frequently highlighting exceptional communication and... See more

Order

Consumers find order to be a largely positive experience, frequently highlighting fast shipping, seamless... See more

Reviews shaping this summary

Rated 5 out of 5 stars

In a Market with so many skeptics, I have found in Mile High a trustworthy source . They include the QR code that takes you directly to the lab certifícate in every vile. The fact that they accept... See more

Company replied

Rated 5 out of 5 stars

Update: Taylor at MHC reached out pretty quickly after this review posted and wanted to offer a reshipment of my peps due to the packaging issue. They were exceptionally communicative and very quick... See more

Company replied

Rated 5 out of 5 stars

I want to extend a big thank you to Max and the team for providing clean compounds and always finding ways to provide a better experience. They are bringing the service back into the customer experien... See more

Company replied

Rated 5 out of 5 stars

Hands down one of the top-most trusted sources on the internet. Great customer service, trusted and verified third party COAs, and fast delivery round out the great experience I’ve had with this vendo... See more

Company replied


Company details

  1. Biochemical Supplier
  2. Biochemistry Lab
  3. Biotechnology Company

Written by the company

Mile High Compounds is a family-owned and operated U.S. supplier of premium research compounds. Every lot is independently tested by ISO 17025 accredited labs — eight tests minimum, covering identity, purity, net content, USP <71> sterility, endotoxins, variance, and heavy metals. New lots run a 15-point panel that adds residual solvents, residual TFA, container closure integrity, water solubility, and a fentanyl screen. Every COA is published, not available on request. Order by 3 PM MST, Monday through Friday or before 12PM Saturday, and it ships the same day via FedEx 2 Day.

The Mile High Compounds Difference

Written by the company

1. Product
Mile High Compounds is different in three ways. Our peptides are sourced from U.S.-based, cGMP-certified manufacturers. Nothing arrives from an unverified supplier. Every lot is independently tested by ISO 17025 accredited laboratories before it is released. Eight tests are the floor: identity, purity, net content, 14-day sterility, endotoxins, conformity, and heavy metals — screened for lead, arsenic, mercury, and cadmium. New lots run our full 15-point panel, which adds residual solvents, residual trifluoroacetic acid (TFA), container closure integrity, water solubility, and a fentanyl screen. Every certificate of analysis is published publicly via our COA library. We are proud to be one of the most rigorously tested suppliers in the industry, more than any other we are aware of.
2. Service & Support
We ship six days a week from our warehouse in Scottsdale, Arizona. Place an order by 3 PM MST, Monday - Friday & 12 PM Saturday, and it goes out the same day. Orders over $300 ship free via FedEx 2 Day. We accept all major cards and back unopened product with a 14-day return policy. Support runs through email at support@milehighcompounds.is. Questions about a compound, a COA, or an order reach our team directly, and we answer quickly. Now over a year ago, this company was one person — customer service, fulfillment, logistics, packing every box. Today we are family owned and operated, based in Colorado Springs, Colorado. Our founder employs his parents and most of his extended family, people with real backgrounds in laboratory and medical work, operations, logistics, and service. We are obsessed about the little details and make sure your experience is exceptional.
3. Industry discounts
We offer discounts to veterans, active military, first responders, and public safety and service members. These are the people who spend their careers on the hard end of other people's worst days. Extending them better access to quality research materials is the least we can do. Verified through VerifyPass. Learn more about our industry discounts here: https://milehighcompounds.is/military-discount/

Contact info

4.8

Excellent

TrustScore 5 out of 5

502 reviews

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Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 75% of negative reviews

Typically replies within 1 week

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4.8

All reviews

(502)

498 reviews in the last 12 months

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Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Exceptional Accountability and Unbiased Proven Quality

I am writing this to follow up on a previous negative review I posted. I have since deleted that review because I was proven wrong, and it no longer accurately reflects my experience with this company.

Initially, I was skeptical and suggested that Mile High Compounds was largely "internet hype" with sub-par product quality. I actually said I thought it was bunk.

Max reached out directly with a level of transparency you rarely see. He responded with the following:

"Regarding our quality: All COAs are updated and posted on our product and certificates pages for public verification. We ensure that batch numbers and cap colors align perfectly with our lab results.

If you have concerns about the legitimacy of your specific vial, I am happy to pay for you to send a sample to a third-party lab of your choice—Vanguard, Kovera, Chromate, or Freedom Diagnostics. If the results do not come back as 99%+ purity or the compound listed on our posted COA, I will cover the testing costs and provide a full refund. Please reach out to support at milehighcompounds.is so we can coordinate this. Thank you.
-Max"

Beyond the public response, Max found my number, which didn't match the contact info in my review and took the time to contact me personally. He was courteous, honest, and sincere in addressing my concerns.

I decided to take him up on his offer. MHC sent a replacement vial of R10 at no cost, and I independently paid for purity and content testing through a different lab than the one used for their official COAs. The results I just received were spot on:

Purity: 99.85%
Net Content: 10.59mg

Max deserves this credit. When he says he backs his product, he means it. While he may be too busy to handle every daily customer service inquiry personally, it is clear that when he steps in, he delivers exactly the kind of quality and integrity described in the positive reviews here.

April 28, 2026
Unprompted review
Rated 1 out of 5 stars

Mike High Compounds is showing a…

Mike High Compounds is showing a complete lack of integrity and customer safety. They have quietly swapped their testing from the rigorous USP 71 sterility standard to the much lower USP 61 standard, which only counts bacteria instead of ensuring a product is actually sterile. This change was made without any warning to customers, which is a massive red flag for anyone putting these products in their body. To make matters worse, they are actively deleting complaints and honest feedback on TikTok to maintain a fake
"everything is perfect" vibe. When a company hides behind a curated comment section and lowers their safety standards in secret, they have clearly lost the right to be trusted.

April 28, 2026
Unprompted review
Rated 1 out of 5 stars

Mike High Compounds is showing a…

Mike High Compounds is showing a complete lack of integrity and customer safety. They have quietly swapped their testing from the rigorous USP 71 sterility standard to the much lower USP 61 standard, which only counts bacteria instead of ensuring a product is actually sterile. This change was made without any warning to customers, which is a massive red flag for anyone putting these products in their body. To make matters worse, they are actively deleting complaints and honest feedback on TikTok to maintain a fake "everything is perfect" vibe. When a company hides behind a curated comment section and lowers their safety standards in secret, they have clearly lost the right to be trusted.
Follow-up- Mile High Compounds have been on a literal rampage to remove any negative feedback or honest questions:
• TikTok Censorship: They are deleting comments and feedback in real-time to maintain a fake, curated persona.
• Trustpilot Harassment: They are now resorting to harassing Trustpilot to have legitimate, critical reviews removed. By abusing reporting tools to discredit unhappy customers, they are trying to bury the truth and promote a total facade.
The Bottom Line
When a company hides behind a curated comment section, harasses review platforms, and lowers safety standards in secret, they have lost the right to be trusted. Their priority is clearly their image, not the well-being of their customers. If they were confident in their products and their choices, they wouldn't need to spend so much energy silencing the people who buy them.
I strongly advise staying away from Mile High Compounds. Ethical companies don't hide the truth; they stand by their standards.

This response from Max is a clear red herring; the core of this dispute is not the delivery destination, but the undisclosed downgrade of safety protocols from USP 71 to USP 61. To suggest that legitimate concerns regarding sterility testing are merely misinformation stemming from geographic dissatisfaction is disingenuous and borders on professional negligence.
By your own admission, the decision to cease shipping to Australia was a deliberate choice, yet you failed to provide proactive, transparent notification to your established customer base. Purposefully keeping clients in the dark while continuing to accept engagement is a breach of standard consumer transparency. Furthermore, your claim that you do not delete comments and that TikTok censors content independently is inconsistent with the observed, systematic removal of detailed critiques. Characterising your attempts to flag and remove Trustpilot reviews as a verification process is a thinly veiled tactic of review suppression. Harassing third-party platforms to strike down evidence-based criticism is an affront to consumer rights.
The dismissive and high-handed remark regarding the hope that I find a local vendor is noted for its staggering arrogance. Given your current trajectory of lowering testing standards and silencing safety advocates, such a comment is incredulous and serves as further evidence of a company that has prioritised its facade over ethical obligations. Be advised that attempts to discredit valid safety concerns by labelling them as trashing the company will be met with further public scrutiny. Defending a reputation requires maintaining actual standards, not merely deleting the evidence of their absence. The truth is not misinformation; it is a liability you have failed to manage.

April 19, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Hey, I’m sorry to hear you’re upset, we strive to provide the highest standards of testing and customer service. We have switched labs, but not USP 71 guidelines. They are now on a 2nd page with their own sterility profile, with the new lab we are now testing with. These are all viewable on each product page. My staff have also told me, through email that you have been incredibly disrespectful to them, which I do not tolerate, as they have been nothing but helpful to you with any concerns.

It seems like this misinformation that is being spread about us stems from you being unhappy about us not shipping to Australia anymore, as customs has tightened up on shipping peptides to there. It was a hard decision for us to make, and not one we wanted to, unfortunately.
Also, TikTok censors comments on their own, especially on any peptide related content. We don’t delete comments. We do however, check reviews to make sure they are real people reviewing them, especially when an order number is not provided, thats not harassment.

I hope you find a good vendor that is local to you, as we have tried our best to accommodate our Australian customers, to no avail. While I understand your dissatisfaction with that, trashing our company with information that isn’t true whatsoever, we do not condone and will defend. Thanks.

Max

Rated 5 out of 5 stars

Great customer service with an honest…

Great customer service with an honest site

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Thank you Sevina for your kind words. We work hard to provide all information up front and help as much as we can to make your experience a good one!!

Rated 5 out of 5 stars

ALWAYS FAST SERVICE AND QUICK SHIPPING

ALWAYS FAST SERVICE AND QUICK SHIPPING.
LOVE THIS COMPANY

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Thank you Deana!! We try to keep that rhythm going daily!! Thank you for being a great customer and look forward to working with you again!

Rated 5 out of 5 stars

quality products

the website is easy to use. more importantly, the products are great quality. fast shipping.

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Thank you Julie for your great review! We have worked hard to make the site as user friendly as we can for everyone, I am glad it is paying off!!

Rated 5 out of 5 stars

Exceptional products that work and…

Exceptional products that work and super fast shipment. Customer service always responds promptly to questions. Also, no research company on the market offers seven different types of tests for their products like Mile High Compounds does.

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Dan, thanks so much for your awesome review. We take this seriously, we want the best for our customers, and we work hard to always stay in communication with you all! Thanks for noticing our hard work and dedication!

Rated 5 out of 5 stars

Max is an honest and compassionate…

Max is an honest and compassionate business owner he cares about his customers on every level . I feel connected to him because of his journey and where he has come from my family is from Grand Junction Colorado so I support his journey ❤️

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Thank you for the kind words! Appreciate the love shown for our hard work.

Rated 5 out of 5 stars

I have not yet been disappointed with…

I have not yet been disappointed with this company and I will keep coming back. They are by far my favorite company.

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Thank you for your kind words and honest review! Mile High Customer support

Rated 5 out of 5 stars

Max has always been very open and…

Max has always been very open and honest. The products are tested and safe. Very fast shipping.

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Thank you for your kind words, Tallia. We appreciate you and will continue to offer you the same quality every time!

Rated 5 out of 5 stars

Shipping is fast and product actually…

Shipping is fast and product actually works amazing!

March 18, 2026
Mile High Compounds logo

Reply from Mile High Compounds

Jasmine, thank you for the awesome review!! We are so happy that you are pleased with the service and quality. We hope to work with you again!

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