InstaNatural Dark Spot Corrector Face Serum with Glycolic Acid & Niacinamide - Brightens Skin, Reduces Hyperpigmentation, Sun Spots & Acne Scars - 1 Fl Oz - Perfect for Daily Skincare Routine & Post-Acne Treatment

I've been using this product for just over four months now. It is NOT a miracle, overnight, spot remover, at least not for me. However, I've been using it 4-5x/week on a couple areas of my face and it has helped. I had three different types of dark spots on my face and I'll cover how it worked on each:Sun spots on my forehead - These are from about 10 years ago and I've tried other products with no luck. These are the spots that have taken the longest to lighten, however they were pretty dark AND old. They're now about 50% lighter than they were when I started using the product, and continue to lighten.Melasma on upper lip - This is from hormones that I'm on and I hadn't found anything that could touch it, so I didn't have high hopes. It lightened this pretty quickly (within a month) about 30% and it has stayed at that level. I'm happy with this as it's hard to find any cosmetic resolution to something that is caused by hormones within the body.Acne scar on cheek - This was a fairly dark spot on the middle of my cheek, but was also only about a year old. This had been steady lightening and is now completely gone. I've still been applying it to the spot just to make sure but will stop doing that within a month or so.For the spots listed I use two drops per application to cover all of these areas. A very little goes a long way! I still have over half of a bottle left, so for the $ this is a great value and it can work well, you just have to have patience and apply regularly.