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Can DUO be used with own topical minoxidil?
Product & Compatibility
What is FLEX mode and CORE mode?
Product & Compatibility
Does DUO work with oil-based solutions/ foam?
Product & Compatibility
How long is the shipping time?
Orders & Shipping
Why is only air coming out when I first start using it?
Troubleshooting
What is included in the DUO bundle？
Product & Compatibility
Will using the DUO affect the formulation of the solution?
Product & Compatibility
Is there a way to clean it if crystallization happened ?
Cleaning & Maintenance