Amazon's Holiday Beauty Haul sale is packed with Revlon, Crest and more — from $7

This kit delivers on its pro-level, smile-brightening claims, reviewers say. It promises to remove up to 25 years' worth of stains from your chompers.

The pack comes with 22 treatments, with one upper and one lower strip for each session. With improved sealing technology, these strips no longer slip, so you can drink water — even talk — while using them. Just peel off a strip, apply it over your teeth, and leave it for 30-45 minutes. You'll start to notice a whiter smile in as little as three days, with the full effect in about 20 days. You'll also get four treatments' worth of 1-Hour Express strips to use on days when you want speedy same-day brightness.

Plant-based Pura D'or is formulated to treat thinning hair using a blend of 17 active herbal ingredients, including nettle extract, saw palmetto and argan oil. It also includes biotin, an essential nutrient that helps promote thickness, and niacin, which works to improve scalp health.

Factors that may cause hair thinning and damage range from stress and hot styling tools to illness. Whatever the cause may be, according to thousands of Amazon buyers, this color-safe shampoo and conditioner gives strands a boost. And it does it without parabens, sulfates or other harmful ingredients.

If your sensitive mouth makes eating ice cream a struggle, the No. 1 bestselling AquaSonic Black Series Toothbrush has you covered. Thanks to its four brush modes, you can set it for sensitivity, deep cleaning, gum massage and even whitening. It also has a built-in 30-second timer and a two-minute auto shut-off to help you develop a better brushing routine. Its motor also delivers 82,000 vibrations per minute and removes up to 10 times more buildup than an ordinary toothbrush.

Megafans (like Vanna White!) say this powder evens out skin tone and smooths out creases and pores for a fresher, still-natural look. It contains color-correcting pigments to help even out unbalanced skin while leaving you looking natural, not like you've slathered on a ton of product. The formula self-adjusts to match your skin tone, so you don't have to worry about it being too warm or too cool as long as you select your closest shade. 

And yes, this product is literally baked: The colored pigments are baked on terracotta tiles for 24 hours, giving them a unique consistency that offers the ease of powder and coverage of a cream. This allows it to fill in pores and create a smoother base without settling into fine lines and wrinkles, fans say.

If you're into K-beauty (that's Korean skincare), you're probably familiar with snail mucin (snail slime). If not, well, it turns out that hydration can come from the most unexpected sources — the little gastropods' secretions are the main ingredient in this hard-working cream. 

Enriched with 92% snail mucin, All in One promises to hydrate, plump and improve your complexion with its antimicrobial properties, copper peptides and moisturizing hyaluronic acid. Over 32,000 five-star fans say it lies up to the hype.

This serum contains a high concentration of vitamin C along with tripeptides and green tea extract to help restore skin to its youthful, glowy best. 

Real Housewife Bethenny Frankel is a huge fan of the product (and the brand), saying on social media that Bright Idea is "great for year-round daytime [wear] ... [It's] hydrating, plumping, brightening. ... Not all vitamin C is created equal!"

This multitasker is loved by celebs and beauty enthusiasts alike, including big names like Drew Barrymore, who called the cleanser "by far the best makeup remover I've ever used."

Whether you're a makeup enthusiast or minimalist, Bioderma's micellar water could be your new best friend. It instantly wipes away makeup and other grime without rough scrubbing, but it also works well as a cleanser for any skin type, including sensitive skin.

This relaxing lotion contains colloidal oatmeal to soothe the skin — and lavender to calm the soul. Ingredients such as dimethicone and glycerin are standbys that work together to create a moisturizing, oil-free barrier on the skin. They're typical of many moisturizers, but — as with most of Aveeno's products — this lotion also includes colloidal oatmeal, a favorite ingredient of dermatologists for its soothing properties.

Our own Aveeno fan wrote that Stress Relief is a "grease-free, absorbent, de-stressing wonder of a lotion that smells of relaxation. ... It hydrates without ever feeling greasy or sticky, and even though it's fragranced, I've never found it irritating. I battle with my own skin issues, and this calming, nourishing lotion keeps them in check — so much so that I'm never without a full-size bottle on my nightstand or a travel bottle in my purse."

Viviscal contains collagen, biotin, zinc, vitamin D, iron and niacin, and a three-month clinical trial found that it increased the number of hairs in participants by 32% and decreased shedding by 39%. The researchers also found that use of the supplement led to higher quality-of-life-assessment scores among supplement users compared to those who took a placebo.

Maybe you're wondering: "Do hair loss supplements actually do anything?" They can definitely help, says New York City dermatologist Dr. Gary Goldenberg, founder of Goldenberg Dermatology. "Supplements that contain ingredients to block DHT — one of the drivers of androgenetic hair loss — can help slow down the process of hair loss," he says. "Other ingredients, such as biotin, help strengthen hair and nails."

This fast-absorbing formula features the TruFirm Complex and a mix of moisturizers to help boost your skin's elasticity, targeting fine lines and wrinkles in the process. 

Age-defying celebs are big fans of the cream, too. Jane Seymour, 73, told Prevention that sometimes we forget that we age beyond our faces. "Nobody thinks of the skin beneath their neck," she said. "They’re so obsessed with getting rid of a wrinkle or a line on their face that they forget the dead giveaway to age is basically your neck, your décolletage, your arms … the dry skin on your shins and your feet." And Crepe Erase works for all of those zones!

More than 18,000 beauty lovers have given this handy blow-dryer brush their seal of approval — including two Yahoo staffers!

The clever gadget uses ionic technology to help tame frizz and leave hair looking and feeling smooth and shiny. Meanwhile, its round edges and tufted bristles add volume and body to hair, making it look fuller and healthier. The dryer brush has three heat and speed settings for styling flexibility, depending on the type of blowout you're going for.