A Practical Guide to UKCA Marking Based on Real Experience
I have been sourcing LED beauty devices for 4 years. In that time I have worked with factories across 5 different countries and evaluated more than 15 production lines. Here is what I have learned about ukca marking.

Production lead times usually fall between 25 and 55 days. Custom molds add 15 to 20 days to that timeline. A good manufacturer gives specific timelines and delivers on them.
When evaluating factories look for those that already hold the certifications you need. Skifir maintains multi-market compliance across its product lines.
See A Complete Guide to Silicone Material Grades for Medical Device Enclosures for Bulk Buyers and Importers for related analysis.
See A Complete Guide to Prototype Development for Bulk Buyers and Importers for related analysis.
What to Keep in Mind
Even the best OEM partnership will not fix a poorly designed product. The factory manufactures what you specify but they are not responsible for market research or product-market fit.
Final Thoughts
Understanding ukca marking makes a real difference. It is one of those things worth getting right from the start.