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serotonin 10% Off Promo Codes — October 2026

2 active offers available for serotonin

10%OffNew

New

Top Pick

10% off your first purchase

Sign up for Serotonin Beauty emails to get early access to new launches plus 10% off your first order of lip and skin products.

Limited Time Offer

FreeShip$35+

$35+

Free Shipping

Free shipping on purchases over $35

Orders of $35 or more ship free at Serotonin Beauty, with a running total shown in the cart of how much more you need to qualify.

Limited Time Offer

The Complete serotonin Savings Guide

A practical savings guide for shoppers using serotonin offers.

Detailed savings information for this store will be available soon.

Social Proof

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