Along with the brand's popular (if not offensively named) Tigi Bed Head Dumb Blonde Shampoo and Conditioners, the brand is also re-releasing the formerly named Brunette Goddess Shampoos and conditioners. The packaging may be revamped and the product renamed, but the formula remains a favorite. (Our readers rate the products highly for their "chocolate/honey/brown sugar scent" and for the "noticeable difference" it makes on their hair.)

After Prescriptives closed their makeup counters in 2009, fans were in an uproar. Twenty-five thousand e-mails and 180,000 customers signed up for e-mail updates later -- the brand is back exclusively online. The new website features a Custom Blend Video Service, a foundation Shade Finder and the cult classic products you know and love.

Everyone's favorite socially conscious, retro brand is back and, if I do say so myself, prettier than ever. After filing for bankruptcy in 2009, the company has come back with new packaging and new formulas, but rest easy -- they kept the same brighter-than- bright shades you've always loved. My personal favorite: Jane Cream Eye Shadow, $8.

It turns out we aren't the only ones secretly stockpiling our favorite cosmetics in case they're ever discontinued. When Bobbi Brown discontinued the Sheer Lip Color in Plum Stain, fashion designer Carolina Herrera bought up every tube she could get her hands on. Bobbi Brown took the hint and re-released the shade, naming it Carolina in her honor.

Recreate Them
If you're looking for your own favorite discontinued products, there are steps you can take that don't involve setting Google alerts or simply stalking the brand's Facebook pages. Companies like Three Custom Color allow you to recreate your favorite discontinued cosmetics. Simply send in a sample of your product approximately the size and thickness of a dime (if your product isn't already in their database) and they will analyze the color, texture and coverage to recreate your product. Your information is then stored in their database, so you can order the next time without a sample.

Reach Out
Cosmetic companies understand how seriously their customers take a product being discontinued. Estée Lauder companies (which include Clinique, Bobbi Brown, La Mer, MAC and many others) have created a program called Gone But Not Forgotten. Simply give them a call, let them know the product you're searching for, and they will track it down for you, sending you as many as six pieces at a time if it's available. Some companies don't have programs like this set in place, but have customer service teams that are perfectly receptive to inquiries about discontinued products.

Scour the Web
When all else fails, I turn to websites known for selling discontinued products by the bundle and stock up. Amazon and Ebay -- as well as sites like DiscontinuedBeauty.com and BeautyEncounter.com -- often sell products by the case or in smaller bundles. A note of caution: never use products that aren't factory sealed when you receive them.