When one woman volunteered to see what would happen if she didn't wash the makeup off her face for a month, the results were pretty scary.

Watch The Doctors and dermatologist Dr. Annie Chiu explain some of the reasons why wearing makeup constantly might cause skin to age prematurely.

Next time you're feeling too lazy to wash your face before bed, you better think twice!

Also on HuffPost:

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  • If you have normal skin...

    Dr. Jessica Wu Skincare Micro-Polish Exfoliator: Finely ground ivory palm seeds help to get rid of dead skin cells whilemango butter, almond and olive oils help to nourish and leave behind a radiant complexion. $30, costco.com and drjessicawu.com

  • If you have normal skin...

    Alba Botanica Natural Hawaiian Face Scrub: This gentle exfoliator contains nourishing jojoba, vitamin E and aloe. $14, <a href="http://www.albabotanica.com/face/cleansers/pore-purifying-pineapple-enzyme-1.html" target="_blank">albabotanica.com</a>

  • If have dry skin...

    St. Ives Moisturizing Olive Scrub: Gently scrub away dead skin cells and restore moisture with this olive oil, jojoba, chamomile and vitamin E rich hydrating formula. $4, available at Walgreens, Duane Reade and other drugstores.

  • If have dry skin...

    Fresh Sugar Face Polish: Ingredients like brown sugar, strawberries and grape seed oil add much-needed hydration. $8, <a href="http://www.sephora.com/sugar-face-polish-P12295" target="_hplink">sephora.com</a>

  • If you have combination skin...

    Olay Skin Smoothing Cream Scrub: This oil-free and unscented scrub features microbeads, glycerin and salicylic acid that leaves skin super clean and smooth.$6, <a href="http://www.target.com/p/olay-skin-smoothing-cream-scrub-6-oz/-/A-13108941" target="_blank">target.com</a>

  • If you have combination skin...

    Aesop Purifying Facial Exfoliant Paste: Finely ground quartz buffs away dry patches, while lactic acid helps absorb excess oil from the T-zone. $49, <a href="http://www1.aesop.com/shop-us/classic-skin-care/deep-cleanse/purifying-facial-exfoliant-paste" target="_hplink">aesop.com</a>

  • If you have oily or acne-prone skin...

    Dermalogica Daily Microfoliant: This facial scrub may be on the pricey side, but it contains skin brightening and softening ingredients like rice enzymes, green tea, ginkgo and oatmeal that make it worth the big bucks. $52, <a href="http://www.dermalogica.com/daily-microfoliant/11,default,pd.html" target="_blank">dermalogica.com</a>

  • If you have oily or acne-prone skin...

    Burt's Bees Refining Facial Scrub: Jojoba beads and a natural fruit acid complex smooth away dead skin cells; salicylic acid (naturally derived from willow bark extract) keeps breakouts at bay. $10, <a href="http://www.target.com/p/Burt-s-Bees-Refining-Facial-Scrub-4-0-oz/-/A-11235883?ref=tgt_adv_XSG10001&AFID=Froogle_df&LNM=%7C11235883&CPNG=health beauty&ci_src=14110944&ci_sku=11235883" target="_hplink">target.com</a>

  • If you have mature skin...

    Clarins Bright Plus HP Gentle Brightening Exfoliator: Turn back time with this raspberry and grapefruit-infused scrub that targets age spots, leaving skin brighter. $30, <a href="http://www.sephora.com/bright-plus-hp-gentle-brightening-exfoliator-P282027" target="_blank">sephora.com</a>

  • If you have mature skin...

    Tatcha Gentle Rice Enzyme Powder: Water activates this super-gentle blend of rice bran, papaya and licorice root. $65, <a href="http://www.barneys.com/Polished%3A-Gentle-Rice-Enzyme-Powder/00505017129459,default,pd.html?adtype=pla&kw={keyword}&gclid=CMfZ-MTo7K8CFYFo4Aod6BEV3Q" target="_hplink">barneys.com</a>

  • How to Make Homemade Facial Scrubs

    Want gorgeous, glowing skin without breaking the bank? Jeannie Mai shows how to whip up three facial scrubs.