I usually rely on scrubs to lighten up dark marks or uneven areas on my skin - particularly my knees, underarms and elbows. For me, exfoliation is a key part of brightening up the skin tone and it doesn't require any fancy gadgets or expensive beauty potions. All you need for a great exfoliating scrub is oil and some sugar.
I love using natural DIY recipes for my skin where possible and often I mix up whatever I have laying around. Lately I've been using a combination of citrus essential oils and dark brown sugar which only takes a minute to prepare. I like to use lemon and orange oil which are both great for lightening the skintone. They're both highly concentrated so I mix only a few drops with a carrier oil like Sweet Almond Oil.
The standard recipe I've been using is:
1 tablespoon of Sweet Almond Oil
1 tablespoon of Avocado Oil
5 drops of Orange Essential Oil
5 drops of Lemon Essential Oil
6 tablespoons of dark brown sugar
I mix this altogether in a bowl looking for a consistency that's not too oily or too dry. I prefer to use dark brown or brown sugar as it's a softer, moist sugar with fine grains which aren't too abrasive on the skin. If you choose to use white sugar, or even sea salt, just add more oil so it's not so rough. After it's all mixed together I store it in a container which I just keep in my bathroom to use when I shower until it runs out.
By using this scrub at 1-3 times a week, I've noticed a dramatic improvement in dark areas on my skin, especially my knees which have always been several shades darker than the rest of my skin.
Have you tried making your own body scrub?