Sculpt: The design of any separate component of the doll as it is without paint, hair, and accessories. Scalping: Scalping is the practice of buying rare and popular toys with the specific goal of reselling them for a profit. Not only do scalpers profit from the shortage they help create, their actions also get in the way of those who enjoy the 'hunt' for new toys.

Rainbow Surprise was the first time the name "Rainbow High" was mentioned and the inspiration for the doll line.

The first Playsets were released in early August, 2020 with the introduction of the Fashion Studio, Hair Studio, and Hair Salon. The Fashion Studio and Hair Studio sets came with dolls (Avery Styles and Amaya Raine, respectively), while the Hair Salon was the first playset to not include a doll. Similar to its sister brand LOL Surprise, Rainbow High's dolls and accessories are manufactured in China.

After the release of Laurel De'Vious and Holly De'Vious, the franchise have released multiple new and modified head sculpts. In a few months, Rainbow High shot up in popularity, being enjoyed by both a younger and older demographic of doll collectors. It especially sparked the interest of people who had previously grew up with fashion dolls such as Monster High, Ever After High, and MGA Entertainment's own brand, Bratzillaz, three doll lines that also have a high school element. Rainbow High so far only has two body types, which are female and male. The female dolls all share the same body molds. All dolls so far are 24 cm, making them the same height as shorter Monster High dolls. The bodies are made of high quality, hard plastic and the doll's hair is made out of nylon. The dolls are fully articulated, female ones has 11 points of articulation: at the head, arms, elbows, wrists, hips, and knees. The boys have 13 points, with all of the female points of articulation plus articulation at the ankles. It’s time for Sabrina St. Cloud to shine! This Rainbow Vision Rainbow High Rainbow Divas doll has a unique design and is dressed in rose- gold pink tones from head to toe. She has gorgeous, detailed features in her fashion, straight pink hair, long real eye lashes and glass eyes. Collect all the Rainbow Vision – Rainbow Divas fashion dolls, each sold separately. Rainbow High branding now covers what used to go under the "Poopsie Surprise" branding. This includes Fantasy Friends and the surprise makeup slime kits.Cheerleader Squad, Winter Break, and Rainbow Junior High Series 1 consists of Series 1 characters with the exception of Avery Styles and Amaya Raine. The first ever themed/budget dolls released only 5 months after the debut of the doll line with the Cheerleader Squad dolls, which featured the main 6 characters in cheerleading uniforms.