Setup & Application:1. Wet hair thoroughly: Ensure your hair is completely wet from root to tip.2. Apply shampoo: Dispense a small amount of shampoo into your palm (typically a coin-sized amount for medium-length hair).3. Lather and massage: Gently massage the shampoo into your scalp using your fingertips, working up a rich lather. Pay attention to areas where you experience thinning or dryness.4. Rinse thoroughly: Rinse your hair completely with lukewarm water until all shampoo residue is gone.5. Repeat if necessary: For very oily hair or if you use a lot of styling products, a second wash may be beneficial.6. Follow with conditioner/mask: For optimal results, follow with Pantene Hair Biology Menopause Hair Mask or a suitable conditioner.Compatibility:This shampoo is designed to be fully compatible and work best when used in conjunction with other products from the Pantene Hair Biology Menopause series, such as the Hair Thickening Serum and Hair Mask. Using the full range ensures a cohesive treatment for your hair concerns. It is generally safe to use with color-treated hair, but always perform a patch test if you have specific concerns.Care & Storage:- Storage: Store the bottle in a cool, dry place, away from direct sunlight.- Bottle Care: Ensure the cap is closed tightly after each use to prevent product degradation or spillage.- Shelf Life: Refer to the PAO (Period After Opening) symbol on the bottle (often an open jar icon with a number like "12M" for 12 months) for recommended usage duration after opening.