Save your money and skip these expensive beauty supplies. Dermatologists say alternatives give you better value (and glowing skin).

Beauty products you might not need

You work hard for your money, and you deserve products that work hard to keep your skin and hair looking great. But, alas, that’s not always what you get. We discovered nine that don’t live up to their promises (and often high price tag), and got the scoop on what to use instead for beautiful results.

1Costly cleansers

Cleansers are only on your skin for a short time, so they rarely have much “action” beyond removing makeup, oil, and dirt—something any cleanser should do, says Christine Choi Kim, MD, a dermatologist in Santa Monica, California. A more worthwhile investment: a Clarisonic cleansing brush. Unlike other cheaper cleansing devices, which use manually rotating brushheads that can be too abrasive on sensitive skin, Clarisonic employs ultrasonic vibration to gently, yet deeply cleanse skin. The payoff: Besides minimizing breakouts, you’ll get more punch from the products you use afterward.

2Trendy anti-aging products

Beauty product not worth buyingSnake venom and stem cells sound sexy, and they may even have some skin benefits. But nothing has the proven scientific track record of retinoids and alpha-hydroxy acids (AHAs), says Dr. Kim. Both can gradually build collagen, minimize the appearance of fine lines and unwanted pigmentation, and keep pores clear to help alleviate acne. “These, combined with sunscreen, are the simple foundation of most dermatologists’ personal skin-care regimens,” says Dr. Kim.

3Spendy sunscreens

04-beauty-products-money-sunscreenThe best sunscreen is one you’ll use. So if you’re more likely to apply a $35 sunscreen because you love the way it feels or smells, slather away. Just be aware that there’s no need to shell out big bucks to effectively shield your skin from the sun. “Expensive packaging doesn’t mean more protection,” says Mona Gohara, MD, associate clinical professor of dermatology at Yale School of Medicine. In fact, Consumer Reports testing consistently shows that many drugstore and mass retailer brands provide excellent protection. One top scorer: Equate (Walmart) Ultra Protection SPF 50, which costs 49 cents an ounce. And please stop falling for these sunscreen myths

4Cellulite-reducing creams

Beauty product not worth buyingIf the arrival of swimsuit season has you heading for the miracle potion section of the beauty aisle, experts implore you to save your pennies. “Cellulite is a complex biologic process that no cream can currently correct,” says Mount Kisco, New York-based dermatologist David Bank, MD, who evaluates claims for these products for the Federal Trade Commission. At most, he reports, some creams may temporarily smooth the appearance of cellulite by hydrating the skin or—in the case of those that contain caffeine—by slightly improving drainage of the sluggish lymphatic system, which is one of the underlying causes of cellulite. A more surefire way to disguise the dimpling is with self-tanner; according to Dr. Bank, the darker color diminishes the “shadowing” created by the alternating high and low areas of skin.

5Stretch mark creams

Beauty product not worth buyingSkip ‘em, advises Dr. Gohara. “If they really worked, stretch marks wouldn’t exist!” The one exception is prescription retinoids, which studies show can improve the appearance of new stretch marks after six months of daily use. (Note: Retinoids can’t be used during pregnancy or while breastfeeding.) For more significant improvement (at a far more significant cost), ask your dermatologist about laser treatments. Some lasers can stimulate collagen growth and zap away the redness of fresh stretch marks, while others can repigment older marks that have turned white. If camouflaging them is more your style, a little body makeup can help even out your skin. Dermablend makes a waterproof product that’s ideal for the beach.

6Pore-shrinking products

Beauty product not worth buyingMany manufacturers are honest about what they can do for your pores—that is, temporarily minimize their appearance, usually by filling them in with silicone-based products. But some go overboard and promise to actually shrink their size. Don’t buy it, advises Dr. Kim. “The size of your pores is determined by genetics, and nothing can permanently change that.” What about when pores become enlarged due to acne or sun damage? Since boosting cell turnover can help unclog pores, you’ll get the most benefit from retinoids or AHAs. But manage your expectations. “They can theoretically decrease pore size, just not back to the day were born,” says Dr. Gohara.

7Salon hair brands

Beauty product not worth buying“There’s no fundamental aspect of the technology used in these products that would make them better than drugstore brands,” says cosmetic chemist Randy Schueller, founder of the Beauty Brains website and former senior director of hair and skin care R&D for Alberto Culver. While any brand—salon or drugstore—will use a proprietary ingredient from time to time, he notes that they both use the same basic ingredients. Be skeptical when stylists advise you about what products to use as well. “They learn about products from the marketing department of salon brands and also make a commission on products you buy from them,” says Schueller. “When they bash drugstore brands, they do so without any real evidence to back up their claims.”

8High-SPF sunscreens

Beauty product not worth buyingIf you (wrongly) believe that SPF 100 blocks double the UV rays as SPF 50, you’re not alone. “One of the biggest misconceptions about sunscreens is that those with higher SPFs block twice or triple the rays as lower ones, when they really only provide slightly more protection,” says Dr. Gohara. The reality: SPF 15 blocks 93 percent, SPF 30 blocks 95 percent, SPF 50 blocks 97 percent, and SPF 100 blocks 99 percent. Despite these incremental differences, research shows people who use higher SPFs tend to stay in the sun longer without reapplying, as well as forgo other sun-protective measures. “They provide a false sense of security,” explains Dr. Gohara. A safer bet than sky-high SPFs: broad-spectrum sunscreen with an SPF of at least 30 (as a bonus, you may save a few dollars, since higher SPFs often come with a higher price tag). Then be sure to use it correctly. To receive the promised SPF, you need to apply a full ounce (that’s a golfball-sized amount) all over your body. Reapplication is also a must, so remember to slather on more sunscreen every two hours or after swimming, perspiring heavily, or toweling off.

9Removers for all sorts of skin woes

Beauty product not worth buyingWant to erase a tattoo or remove a skin tag without seeing a doctor? Yep, there’s a product for that. But experts caution that these DIY offerings don’t live up to their claims. They include OTC lasers and creams to take the ink out of skin (the best they’ll do is fade the tattoo slightly, says Schueller, who advises saving up for laser treatments instead) and liquid nitrogen solutions that mimic the freezing effect of cryotherapy, a treatment derms use to get rid of skin tags. “It’s just not as reliable as the in-office procedure, and since it has the potential to harm your skin if used incorrectly, it’s best to use it under the direction of your doctor,” says Dr. Gohara.