Contact GYC
Get in touch with our team for orders, inquiries, and support
Official GYC Representative
Lisa
Official RepSales Director & Sole Official Representative
Lisa handles wholesale enquiries, custom synthesis, OEM partnerships, and bulk pricing by email only. For general shop questions, orders, and support, please message Gemma Conway on Telegram (below).
Security Notice: Lisa (email) and Gemma (Telegram @Gemaconway) are the only official GYC contacts. If someone else contacts you claiming to represent GYC, it is a scam.
Customer Support
Have a question about the shop, your order, or our products? Message our support agent Gemma Conway on Telegram.
Gemma Conway
SupportSupport Agent
Questions about the shop, your order, or our products — message Gemma on Telegram.
Buyer Protection
100% Delivery Guarantee
Package seized or lost? We reship at no cost — no questions asked.
60-Day Refund Policy
Full refund, free replacement, or 110% store credit within 60 days.
Secure Payments
256-bit encrypted. Visa, MC, Apple Pay, Google Pay, Bank Transfer, Crypto.
Discreet Packaging
Plain, unmarked — no labels or branding visible.
Shipping Information
Nantong, China
2-4 business days worldwide
$25 worldwide with tracking
$50 — fully tracked via USPS, Royal Mail, DHL, etc.
Our Services
OEM Service
Custom manufacturing for bulk orders
Janoshik Testing
Third-party analytical verification
Bulk Discounts
Volume pricing for institutions
Custom Synthesis
Bespoke compound formulation