|Male Grooming products of the highest quality from American Crew – Official supplier to men. Give Grey hair optimal maintenance with this superb shampoo from American Crew. The formula has been devised to remove those brassy, yellowing tones that can detract from grey and greying hair. Also, the addition of Hydrolysed Milk Protein ensures that dryness and wiry texture is eliminated and hair is left with a smooth, healthy look and feel. ormulated as a regular-use shampoo, this can be used daily, or as often as needed or desired, for healthy grey hair. American Crew have ensured with this, as with all of their products that a high standard of quality is achieved.