Optimal Lab vs Zenic Labs

8.1

Optimal Lab

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9.4

Zenic Labs

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	Optimal LabVisit store→	Zenic LabsVisit store→
PepFinder Score	8.1	9.4
Trustpilot	No score found	No score found
Customer rating	No reviews yet	5.0/5 (1)
Would order again	Needs 5+ reviews	Needs 5+ reviews
Product selection	9.6/10 47 peptides · 263 products	9.8/10 61 peptides · 129 products
Pricing and value	6.0/10 In line with the average price per mg	8.2/10 27% cheaper than average per mg
Delivery	10.0/10 1to2 days	10.0/10 1–2 working days in the UK (Royal Mail Tracked 24)
Payment options	7.0/10 CardPayPal	5.0/10 Cryptocurrency
Customer support	10.0/10 EmailPhoneWhatsAppTelegram	10.0/10 EmailPhoneLive chatContact formWhatsAppTelegram
Website experience	Not rated yet	Not rated yet
Reliability	7.5/10	10.0/10
Packaging	Not rated yet	Not rated yet
Ships from	United Kingdom	United Kingdom
Ships to	United Kingdom, Ireland	United Kingdom
Median price per mg	£2.50	£2.20
Reported delivered	No order reports	No order reports
Median delivery (reported)	Needs 3+ reports	Needs 3+ reports
Support replied (reported)	No support reports	No support reports

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The shaded cell is the higher rating in that row. Each rating's source (automated data, customer reviews or editorial) is shown on the supplier's profile.

Testing & transparency (optional detail)

	Optimal Lab	Zenic Labs
Transparency Score	6.8	8.3
Testing transparency	5.4	8.8
Contact transparency	10.0	10.0
Documentation	3.8	6.4
Third-party testing stated	Not yet assessed	✓ Yes
Publishes COAs	✓ Yes	✓ Yes
Batch-specific COAs	Not yet assessed	Not yet assessed
COAs reviewed by us	0	1
Verification	Not verified	Verified
Years tracked	0.1	0.1
Refund policy clear	Not yet assessed	Not yet assessed