QSC
They don't have a site, you just email them and tell them which sizes/quantity you want, and how you want to pay.  They will send you an invoice, which also includes another $45 for shipping.  The invoice will be for “anti-aging copper” or something like that, because of legal issues.  Note that the tracking info is often useless, most people get their shipment while tracking still shows nothing, so don’t worry if nothing seems right.  Wait at least four weeks before re-contacting them if you didn’t get it.  Also, do not expect much customer service, and they mostly don’t answer questions.  They take orders, they ship, that’s about all you’re going to get.  They will NOT engage in anything to do with how to use the products, and mostly don’t even answer anything else.

Note that “kit” simply means a box of ten vials, in whatever size you order.  They will not be marked.

WhatsApp +86-18661891880
sigma@sigmachemical.com.cn
meso-rx@sigmachemical.com.cn

Below is their latest pricing email:

Shipped from US:
1 kit tirzepatide 10x10mg US domestic = $315
1 kit Bac water 10x10ml $25
shipping $10
ETA 3-5 days average

From China:
1 kit tirzepatide 10x15mg $405/kit
1 kit tirzepatide 10x10mg $275/kit
1 kit Retatrutide 10x10mg $350/kit
1 kit Retatrutide 10x4mg $170/kit
1 kit semaglutide 10x5mg $130/kit
1 kit semaglutide 10x2mg $65/kit
shipping to USA $45

Purity tests:
https://janoshik.com/tests/33947-Retatrutide_10_mg_Z2EVY3W8M8Q6
https://janoshik.com/tests/33945-Retatrutide_4_mg_P9MG9CPBUVBW
https://janoshik.com/tests/32515-Tirzepatide_15mg_IKY7WVUP9LPB
https://janoshik.com/tests/30171-Tirzepatide_10_mg_6FSBRW5KUFYB
https://janoshik.com/tests/33949-Semaglutide_5_mg_H7RCLF5I4EUG
https://janoshik.com/tests/29190-semaglutide_2mg_TSLV6712H5QW

I will need list of items you want, email, name, shipping address, phone number and preferred payment method

Available Payments methods:
Cryptocurrency: Bitcoin, USDT, ETH, USDC
Bank Transfer: Europe (€), US ($), Australia (AUD), Chinese (RMB)
WeChat
Alibaba: Credit Card, T/T transfer, Paypal, Apple pay, Google pay