The product you're referring to is the GK Hair Balancing Shampoo in a 300ml size (which is approximately 10.1 fl oz). The "3" you mentioned might be an older product code or a variation in naming used by some retailers.

This shampoo is designed for normal to oily hair types and is known for its oil-control properties.

Key Features and Benefits:

Oil Control & pH Balance: The primary function is to gently cleanse the scalp and hair, effectively removing excessive oil and dirt buildup. It is formulated to restore the hair's natural pH balance, which helps to control future oil production.

Juvexin (Keratin): Like the conditioner, it is infused with Juvexin, GK Hair's blend of anti-aging keratin protein, to strengthen the hair, repair damage, and protect it from environmental stressors.