How about getting her a DIY cosmetic chemistry kit? It could come with a set of ingredients and recipes for making her own beauty products like customized facial serum, moisturizer, and hair mask. You could also consider a subscription box that delivers new cosmetic ingredients and recipes each month for her to experiment with. Another idea could be to get her a book on cosmetic chemistry or a session with a professional cosmetic chemist where she can learn and ask questions about the science behind cosmetics.
Or you can get her a star map with an important date you share.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.