Timeless Skincare - skincarenobs review for 20% Vitamin C + E Ferulic Acid Serum

Personally I didn't experience any life changing difference on my skin. Mainly this is an antioxidant, which we really won't see the difference in a short term. It doesn't lighten my hyperpigmentations. Put this in a fridge will help prolong its freshness and not oxidise so quickly. However, it is still a vitamin c serum, which you have to use it quickly or it will turn brown (sign of oxidation). For me, it turned a slighter darker yellow after 2 months of opening the product. And I immediately stored it in a fridge and so far it has maintained the same color (3 months already). Would recommend to finish this product ASAP once opening.