Time to sell the shampoo recipe to some merchant, improve their family situation with a fat sack of loot. That would be lifestyle improvement. The shampoo is going to make her feel more comfortable on its own I guess, but she might as well just go ahead and get wealthy off her knowledge. Might even catch the attention of some scholar among the nobility to apprentice under, and thus take a shortcut to books galore.
Granted she could also just get abducted by some typical isekai noble made of fat and greed, and worked to death like a golden egg laying goose for their personal profit. Maybe take it slow, put some feelers out there via the shampoo alone to find the right target audience for the other inevitable inventions (printing press seems like her main priority).