Cosmetic Hair Serum Safety, Microbiology, and Stability Testing

I’m looking for a laboratory to conduct pre-market testing on a biphasic, leave-on cosmetic hair serum containing GHK-Cu and AHK-Cu copper peptides and botanical extracts, including baobab, marula, bhringraj, and amla.

The requested scope includes:

• Microbial limits testing
• Preservative efficacy testing or microbial challenge testing
• Real-time and accelerated stability testing
• Heavy metals analysis for lead, arsenic, mercury, and cadmium
• 1,4-Dioxane testing
• A Certificate of Analysis summarizing applicable test results

Please provide recommended test methods and stability conditions, required sample quantities, formula and packaging documentation requirements, estimated turnaround times, reporting deliverables, and itemized pricing.