Product Mix
Product mix is the total composite of product offered by a particular organization. All the types of products a company makes or sells. the particular assortment of goods & services that a business offers to meet the needs of its market and its company goals

Every company's product mix has four dimensions to it :- Width, Length, Depth and Consistency

1. Width- The number of different product lines carries by the company. In case of Head & Shoulders width is two. It has two product lines one is Head & Shoulders Shampoo and other is Head & shoulders conditioners.
2. Length- The total number of items the company carries within the product line. In case of Head & Shoulders it is classified into anti-dandruff shampoos, oily scalp, for men, for women and dry scalp. For dandruff they offer cool menthol, classic clean, lemon fresh, clinical strength dandruff etc. For dry scalp they have dry scalp care and for oily scalp citrus breeze is there.
3. Depth- The number of product and the assortment of size, color and models in a product line. Head & Shoulders has variety of shampoos to offer like anti hair fall, silky black, cool menthol, smooth & silky, clean fresh, classic clean, itchy scalp care etc. 
4. Consistency-It refers to the relationship of various product line either in their end use production requirement, distribution channel or other way. In case of Head & Shoulders it is the shampoo and the condition. That is after a hair wash generally people use conditioner to keep their hair silky and smooth. this how there is relationship between the two product line of Head & Shoulder.