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deep conditioning and collagen pre-shampoo treatment?

i just bought umberto collagen pre-shampoo treatment to help repair my hair and i also bought bedhead self absorbed mega vitamin conditioner which is like a deep conditioner but can i use them both during the same day?? or should i only use one at a time??
also has anyone ever used either of these products? i never have and was just wondering how they worked for other people
thankssss