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Mile High Compounds Reviews 

502
•
TrustScore 5 out of 5

4.8

Biochemical Supplier
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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

great customer service

for the email i got on how to get a answer for my problem , im on my thrird order from them

18 May 2026
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Reply from Mile High Compounds

Aw, thank you for your amazing review! We are happy to help.

Rated 1 out of 5 stars

The peps I got weren't real and had…

The peps I got weren't real and had zero effect.

Price and delivery were good, but what does that matter if the product itself is worthless?

17 April 2026
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Reply from Mile High Compounds

I am sorry to hear of your frustration. We do test our compounds vigorously and you are able to visit our certificates page to verify the COA that corresponds to your products purchased. You also have a QR code on your vials or bottles that link you to it directly. If you have any further questions about the validity of our compounds you are always welcome to contact the lab directly. That information is also provided on the COA. We do not send out product unless it has been verified and deemed quality! If you ever have any other questions, feel free to reach out to us through our support email. We are always happy to help where we can. Appreciate you being a customer .

Rated 4 out of 5 stars

I had previously given them a 3* but…

I had previously given them a 3* but deleted the review after I reordered from them. No issues with the last order. Would love to give me 5* but had to average it out. Totally understand that there are always random bad vials.

28 April 2026
Unprompted review
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Reply from Mile High Compounds

Thank you for your positive review!! We really appreciate you.

Rated 5 out of 5 stars

When I placed my very 1st order

When I placed my very favorite rat order I received a picture showing it was on my porch by the time I got home from work someone needed/wanted more than myself and I Mile High went above and beyond to replace my hole order. Amazing customer service

10 April 2026
Rated 5 out of 5 stars

Best peptide company there is

Best peptide company there is. Max is very transparent and all the testing that’s done on these research grade peptides. Fast shipping. Great communication if there’s a problem or questions.

18 April 2026
Rated 5 out of 5 stars

am absolutely loving Mile High…

am absolutely loving Mile High Compounds! I’ve been using their peptides for a few weeks now and I’m beyond impressed. The shipping was super fast, everything was packaged perfectly, and the quality is excellent. Customer service is also top notch!
I’m so happy I found this company. Will definitely be a repeat customer for life! Highly recommend! ⭐⭐⭐⭐⭐

3 May 2026
Unprompted review

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