The fastest way is to download the AJ Cosmo Labs iPhone app from the App Store, post a brief describing your formula concept and MOQ requirement, and receive responses from pre-vetted USA manufacturers. The app lets you filter by industry category, MOQ, and facility certification, so you are only reviewing manufacturers with proven scalp and hair care experience — not generalist labs unfamiliar with leave-on formulations.
Read the full guide on private label scalp serum manufacturer usa low moq →