Plump up the volume on fine, thin, or aging hair with maximum thickness and body using the massive 128 oz 1-Gallon bulk refill size.

Transform limp, sparse locks into noticeably thicker, fuller hair with every wash. Kevin Murphy PLUMPING.WASH is a high-performance densifying shampoo engineered to nourish and strengthen strands from root to tip without adding heavy weight. Offered in the massive 128 oz (1 Gallon) bulk edition, this ultimate backbar refill holds over 15 times the volume of standard retail 8.4 oz bottles, offering the lowest cost-per-ounce available.

Powered by scalp-stimulating Ginger Root Extract and Nettle Extract, this rich cleanser boosts micro-circulation to nourish hair follicles and encourage optimal growth. Infused with Oleanolic Acid from Lovely Hemsleya root and eyelash-thickening technology, it fortifies hair roots, resists aging and breakage, and leaves hair touchably soft, dense, and visibly voluminous.

Key Benefits

• Massive 1-Gallon Size: Bulk 128 oz volume engineered for heavy salon backbar use and long-term refill economy.

• Densifying & Volumizing: Thickens every strand from root to tip while maintaining natural body and movement.

• Scalp & Follicle Stimulation: Ginger Root and Nettle extracts stimulate circulation to promote a healthy growth environment.

• Root Fortification: Oleanolic Acid fights follicle aging and strengthens hair attachments to minimize shedding and breakage.

• Sulfate, Paraben & Cruelty-Free: Color-safe, gentle formula designed for daily use on fine, thinning, or aging hair.

How to Use & Refill

• To Refill: Carefully pour or install a heavy-duty gallon pump dispenser to refill 8.4 oz retail bottles or 33.8 oz backbar bottles.

• To Apply: Apply a generous portion to wet hair and gently massage into the scalp and lengths to build a rich, densifying lather.

• Rinse & Follow: Rinse thoroughly. For maximum thickening and body, follow with Plumping.Rinse and Body.Mass.