PS Shampoo $36.00 O&M PS SHAMPOO is your smoothing essential for dry, unruly or frizz-prone hair. Add To Cart Added! O&M PS SHAMPOO is your smoothing essential for dry, unruly or frizz-prone hair. You Might Also Like Hard Water Wellness Collection $42.00 Original Detox Shampoo $34.00 Color Awakening Hair Bath $32.00 Fine Intellect Shampoo $34.00 HAIR GLOW—Cleansing Cream $52.00 Sold Out