Write an article based on this summary:

Decide how dark and opaque you want the lipstick to be. Determine your skin's undertones Find a berry lipstick that suits your skin's undertones. Pay attention to the lipstick's finish.

Article:
There are a wide variety of berry lipsticks on the market, which run the spectrum from light to dark and highly opaque to sheer.  Determine how intense you want your berry lip color to be, so you can choose the appropriate lipstick.  Dark, opaque berry lipstick can look very harsh if you have fair skin. That doesn’t mean you can’t wear a dark berry lipstick if you have pale skin. Just choose a sheer formula. If you have medium skin, you can opt for a darker, more opaque berry lipstick because it won’t look as harsh with your complexion. For dark skin, you want to choose a very dark, rich berry shade so it won’t blend in with your skin. . When you’re choosing a berry lipstick, it’s also important to consider your skin’s undertones to find the most flattering option. Some shades will look better with warm skin, while other shades are more complementary for cool skin. Neutral skin will typically look good with any berry shade.  To determine your skin’s undertone, look at the veins at the inside of your wrist. If they have a greenish color, you have warm skin. If they have a blue or purplish color, you have cool skin. If your veins seem to be a bluish green color, you have neutral skin. Another quick way to determine your skin’s undertone is to consider whether you look better in gold or silver jewelry. Gold typically flatters warm skin, while silver is more complementary for cool skin. If they are both flattering with your skin, you probably have neutral skin. Once you know what undertones your skin has, you can choose the most flattering berry lipstick for your complexion. Warm skin looks best with berry shades that have the same warm undertones, while cool skin pairs best with lipstick that has similar cool undertones. If your skin is neutral, you can usually choose any berry lipstick that catches your eye.  If you have warm skin, opt for shades that have orange undertones, such as maroon, burgundy, or deep red berry shades. If you have cool skin, opt for berry shades that have blue undertones, such as wine, deep plum, or oxblood berry shades. Mahogany and plum berry shades tend to look good on every skin tone. The finish of your berry lipstick can affect how it looks and wears. A matte berry lipstick will usually provide the most opaque color and wear longer on your lips. A cream berry lipstick will have fairly intense color but provide more moisture and not last as long on the lips. A glossy lipstick will usually provide sheer color, significant moisture, and a fairly short wear time.  If you want to ensure that your berry lipstick looks rich all day, choose a matte shade. If you have dry, chapped lips, opt for a cream or glossy berry lipstick. You’ll likely need to reapply your lipstick throughout the day, but your lips won’t look as dry or cracked.