Yes, you can certainly buy purple hair dye in Chengdu, as the city is a major fashion and beauty hub with numerous retail options ranging from high-end malls to budget-friendly boutiques. For a wide selection of international and professional brands, head to the "Beauty Museum" at Chengdu SKP, which houses over 60 high-end cosmetic brands, or visit the extensive beauty departments at Chengdu IFS and Taikoo Li. Specialty beauty retailers like Harmay, located in the Taikoo Li district, are famous for their massive selection of skincare, hair care, and makeup, often selling both full-sized products and samples from global niche labels. If you are looking for more affordable or trend-focused options, the B1 floor of Silver Stone Plaza and the shops along Chunxi Road offer a variety of hair coloring products, including semi-permanent dyes and shampoos. Additionally, professional salons such as MM by Hair Code in Taikoo Li or IL COLPO in the in99 mall provide professional coloring services if you prefer a salon application. For those who enjoy DIY convenience, ubiquitous local convenience stores like Hongqi Chain often stock basic hair care and coloring supplies, while large international markets and specialty beauty shops across the city’s many "New First-Tier" shopping districts ensure that vibrant colors like purple are readily available.