Depends on how you want your end result.
Used it in my hair and doesn't look like the photograph the seller has used.  You have to use a lot of this product on darker hair to get any appreciable green color.  It is slightly reflective, which is a plus IMO.  It does cake on thick and does a VERY good job of holding your hair in place.  If you want bounce and flowing hair, this is not your product.  If you want to form a mohawk, this is the perfect product.
Rating: 4 stars