OGX ProGrowth Peptide Scalp Shampoo – $3.69 with Subscribe & Save + Free Prime Shipping

This 13‑ounce formula combines 1.5% mandelic acid with peptide technology to gently clear follicle buildup while reinforcing each strand from the inside out. The sulfate‑free base keeps the scalp calm, reducing breakage and helping fine or thinning hair look fuller over time.

At $3.69 per bottle and free Prime shipping, the cost per wash drops well below typical salon treatments, delivering salon‑level scalp care at a fraction of the price. The subscription discount also ensures you never run out, supporting a consistent routine that maximizes the product’s long‑term benefits.

We recommend this shampoo for anyone looking to address thinning hair without a pricey regimen. Its blend of exfoliation and growth‑supporting peptides offers measurable results while staying budget‑friendly, making it a smart pick for cost‑conscious shoppers in 2026.