Polaris Peptides Review 2026: 97 Samples Tested

You typed "polaris peptides" into Google because Peptide Sciences shut down and you need a new vendor. Before you load a cart, you want to know whether the products inside that vial match the label. Polaris Peptides is a Las Vegas research chemical supplier with independently tested products: tirzepatide earned an A grade (8.8/10) across 15 samples, but retatrutide earned a D across 26 samples with scores ranging from 3.9 to 9.0. Purity ranges from 96.7% to 99.97% across the product line.

The company launched in January 2024 and picked up thousands of former Peptide Sciences customers in early 2026. Polaris holds a 4.0/5 Trustpilot rating across 26 reviews and operates on a members-only registration model. Quality varies sharply by product, so the choice of compound matters more than the choice of vendor.

Company

Polaris Bioactives, LLC (DBA Polaris Peptides)

Location

302 S Jones Blvd, Suite 3020, Las Vegas, NV 89107

Founded

January 2024 (domain registered January 7, 2024)

Type

Research peptide vendor ("For Laboratory Research Use Only")

Product range

50+ peptides, topicals, research compounds

Purity range

96.69% to 99.97%

Finnrick Analytics

97 samples tested, grades A to D

Trustpilot

4.0/5 (~26 reviews)

BBB

No profile

Ownership

Not publicly disclosed (WHOIS hidden)

Payment

Visa, Mastercard, PayPal, crypto (5% discount), Venmo, Zelle

Free shipping

Orders over $350

This review covers independent testing data, pricing, quality signals, known issues, and how Polaris compares to alternatives. All products discussed are sold for research purposes only.

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What Is Polaris Peptides?

Polaris Peptides is a research chemical supplier that sells lyophilized (freeze-dried) peptides, topical compounds, and synthesis precursors. The company explicitly states it is "not a compounding pharmacy or chemical compounding facility as defined under 503A." All products carry a "For Laboratory Research Use Only" label.

The company operates on a members-only model. Registration requires a company or institution name and business type. This gating mechanism is standard among research peptide vendors and serves as a legal buffer, establishing that purchases are for research rather than personal use.

Polaris operates under the legal entity Polaris Bioactives, LLC and runs two domains: polarispeptides.com (main site) and polarispeptidesusa.com (product catalog). The relationship between the two domains is not publicly explained. Domain WHOIS data is hidden behind Contact Privacy Inc. in Toronto, Canada. The company's ownership is not publicly disclosed.

The supplier gained significant visibility in early 2026 after Peptide Sciences shut down, sending researchers looking for alternatives. Monthly search volume for "polaris peptides" jumped to 12,000, reflecting this migration.

Independent Testing Results

Finnrick Analytics, an independent peptide testing laboratory, has tested 97 samples across 9 Polaris Peptides products. The results show significant variation by product.

Tirzepatide 30mg

A (Great)

15

8.8/10

6.5-10.0

PT-141

6

7.4/10

6.7-9.0

GHK-Cu

3

8.0/10

6.5-9.0

Survodutide

B (Good)

5

7.3/10

5.9-8.8

Mazdutide

6.1/10

5.7-6.5

Semaglutide

C (Average)

16

6.9/10

4.7-8.7

BPC-157

11

6.2/10

4.5-7.9

CJC-1295

4

6.5/10

4.1-7.4

Retatrutide

D (Poor)

26

3.9-9.0

Three findings stand out from this data.

First, tirzepatide is the strongest product. The A grade across 15 samples with an 8.8 average and a floor of 6.5 indicates consistent quality. If you are sourcing tirzepatide for research, Polaris is a reliable option based on independent data.

Second, semaglutide scored a C despite being a flagship product. The 4.7 to 8.7 score range indicates batch variability. Some batches test well; others fall below acceptable thresholds.

Third, retatrutide earned a D with the widest score range of any product (3.9 to 9.0 across 26 samples). The 3.9 floor is concerning. Despite a 7.3 average, the inconsistency means any individual purchase carries meaningful quality risk. See our complete retatrutide guide for information about this investigational compound.

What Finnrick Grades Mean

Finnrick Analytics tests peptide samples for identity confirmation (is it the claimed peptide?), purity (percentage of target compound), potency (active content relative to labeled amount), and endotoxin levels.

The letter grade system: - A (Great): Consistently high quality across most samples. Reliable for research. - B (Good): Above average quality with minor inconsistencies. - C (Average): Acceptable quality but batch variability is present. Some samples fall below optimal thresholds. - D (Poor): Significant quality inconsistency. Individual purchases carry meaningful risk of subpar product.

The overall purity range across all Polaris products tested is 96.69% to 99.97%. Endotoxin levels were "not detected" in most samples. Polaris claims to provide Certificates of Analysis (COAs) per batch via HPLC and Mass Spectrometry, but COAs are not displayed on product pages. You must request them from customer support.

Pricing and Discount Codes

Polaris Peptides prices are competitive with the research peptide market. Here are key products.

2mg

$25.00

$22.50

5mg

$50.00

$45.00

Tirzepatide

30mg

$240.00

$216.00

10mg

50mg

Varies

These prices are competitive. Semaglutide 5mg at $50 and BPC-157 5mg at $25 are in line with or below market averages. The tirzepatide pricing at $240 for 30mg is standard for the research market. For context on reconstituting and calculating doses for research, use our reconstitution calculator and unit converter.

Available discount codes (as of March 2026):

polaris10

10% off

First order code

POLARISNEWYEAR

20% off

Seasonal promotion (verify expiration)