1. Use a retinol product every night to build collagen (pick your favorite here - I like Roc retinol serum). Prescription retin-A is a bit stronger but also more irritating to those with sensitive skin.
2. Use an alpha-hydroxy acid cream to fade dark spots and to resurface your skin to make it glow (lactic acid or glycol acid creams). My favorites are Derma-E DMAE cream ($10 on
Amazon) or Aqua Glycolic (also around $10-15 on Amazon). You can use this 1-2 times daily.
3. When you have some money to spare, try Skinceuticals CE Ferulic serum (for normal skin) or Phloretin CF serum (better for oily skin). This is expensive at $150+ for a regular size bottle or you can buy it online in the sample sizes for around $70 at SkinMedica.com. The box of sample size vials will equal the ounces on the full size at half the cost. This serum is AMAZING for evening out skin tone, fading dark spots, and fading fine lines. (Check out before/after pictures online). This serum usually last me about 6 months and so I find it affordable enough for me - wish I'd started using it 10 years ago.
4. Most important: Use a daily sunblock under your makeup (SPF 50). My favorite is La Roche Posay SPF 50 mineral sunscreen ($30 at CVS). This layers much better with other facial products than the La Roche Posay SPF 60 chemical sunblock. Mineral sunblocks can looks a little white until you rub it in but have no fear! It won't look white in a few seconds! This particular brand won't make your face look shiny/oily which is why most people hate sunblock on their face. (And if you have SPF in your foundation and think this is good enough, it's not. Not unless you cake on your foundation which won't look good!) Sun exposure will cause dark spot and darken spots again that you've just lightened so don't skip this step or you're chasing your tail. Be sure to treat your face, neck and top of the chest; and backs of the hands - this is where women age the most and get the most dark spots.
I'm a physician with a particular interest in skin care. Trust me on these products (or find other products you love with retinol and alpha-hydroxy acids). You will see a huge difference in your skin within 3-6 months. (Don't forget to take Before pictures so you can compare later).