The Product: Serum

What it Does:

Anything and everything. More lightweight than a moisturizer, it typically contains much higher amounts of active ingredients that can treat any and every skincare concern.
##How to Use it:
First, find one that meets your specific skincare needs. Apply it onto cleansed skin, before moisturizer; it wont be able to soak into skin if you do it the other way around.
##When to Use it:
Morning and/or night.
##Try:
- For dark spots: Sunday Riley C.E.O. Rapid Flash Brightening Serum is most definitely the head honcho when it comes to evening out skin tone, thanks to spot-fading vitamin C.
- For wrinkles: Este Lauder Advanced Night Repair Synchronized Recovery Complex II is a major multitasker, not only working to smooth wrinkles but also to moisturize and brighten your skin while you snooze.
- For dry skin: Avne Hydrance Intense Rehydrating Serum quenches parched skin for an impressive 24 hours thanks to a special time-released delivery of hydrating ingredients.
- For oily skin: Balance Me Congested Skin Serum zaps zits whether you apply it all over or dab it on as a spot treatment.

The Product: Mask

What it Does:

Brightens, purifies, and/or hydrates your skin in minutes.
##How to Use it:
Slather it on all over (or, if its a sheet mask, place it over your face), then kick back and relax while it does its thang. Netflix and mask, anyone?
##When to Use it:
Once or twice a week, or as a quick skin pick-me-up before a big event.
##Try:
- For firming: Dr. Jart+ Firm Lover Rubber Mask comes with a firming serum that you apply all over before popping on the included rubber sheet mask, which helps the firming ingredients better penetrate.
- For hydration: [ comfort zone ] Hydramemory Mask packs a hefty dose of hydrating hyaluronic acid, and best of all, works in just three minutes.
- For purifying pores: Sand & Sky Brilliant Skin Purifying Pink Clay Mask is pink and pretty but effective too, thanks to pink clay that helps detoxify pores.
- For brightening: Herbivore Botanicals Brighten Pineapple Enzyme + Gemstone Instant Glow Mask touts exfoliating fruit extracts and rice powder, plus real Brazilian white tourmaline gemstones that increase circulation to leave skin extra glowy.

The Product: Eye Cream

##What it Does:
Treats skin issues that crop up around your eyes (think: puffiness, dark circles, and crows feet).
##How to Use it:
Using your ring finger (typically your least strong finger), pat a tiny amount around each eye. The skin in this area is super delicate, so you want to be extra-cautious not to rub or tug on it.
##When to Use it:
Morning and/or night.
##Try:
- For dark undereye circles: Balance Me Tinted Wonder Eye Cream has brightening cucumber extract, plus a universal tint and light-reflecting particles to make it look like you got eight hours of sleepeven if you didnt.
- For aging skin: Este Lauder Advanced Night Repair Eye Serum Synchronized Complex II features special technology that maximizes your skins own ability to repair itself overnight, plus a featherweight formula.
- For puffiness: Vasanti Eye Wonder 2.0 Super Powered Eye Cream with Ceramic Tip contains youth-boosting peptides, and has a special applicator that gently massages the area around your eyes for speedy de-puffing.

The Product: Toner

What it Does:

Helps removes any excess oil or grime that your cleanser may have missed. Some formulas are also made to hydrate the skin.
##How to Use it:
Apply a few drops onto your fingertips and gently press into your skin. Contrary to popular belief, squirting it onto a cotton pad first is a waste of product, since the pad will simply soak up most of it.
##When to Use it:
Post-cleansing, before applying any other skincare or makeup.
##Try:
- For oily skin: Sunday Riley Martian Mattifying Melting Water-Gel Toner transforms from a cooling gel to a liquid, mattifying skin, minimizing the appearance of pores, and helping to ward off blemishes.
- For all skin types: Paulas Choice Skin Perfecting 2% BHA Liquid Exfoliant contains salicylic acid, a choice ingredient for both gentle exfoliation and to minimize oil production, plus antioxidant-rich green tea.
- For dry or sensitive skin: Herbivore Botanicals Rose Hibiscus Face Mist refreshes and hydrates with coconut water, and calms stressed skin with soothing aloe.
- For aging skin: Michael Todd Organic Lemon AHA + DMAE Anti Wrinkle Toner is chock full of citrus (lemon and orange, to be exact) to help fade spots, and the natural nutrient DMAE, which works to smooth and firm.