Infusium Pro 23 Treatment Original 33.8 Ounce (Pack of 2)

Is this for two 33.8oz bottles?

Is this Infusium 23 product (in the white bottle) supposed to be discontinued--compared to the burgundy bottle with "olive & avocado oils"?

Been using this many yrs and love. but, order from amazon is making scalp itchy. did they change formula? or: anyone else get a bad batch?

Is this good for hair heat protection?