Nioxin 4 300ml shampoo & conditioner 100ml treatment colored progressed thinning

New unused nioxin set. This is #4 For colored hair with progressed thinning. Step 1 shampoo 300 ml (10.1 fluid oz) Step 2 scalp therapy conditioner 300 ml (10.1 fluid oz) Step 3 scalp and hair treatment 100 ml (3.38 fluid oz) This is unused still in box. My mom brought this for me but I use bosley md and don’t want to change what I’m doing.