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Not only there are plenty of studies proving its efficacy for anti-aging but also many people online sharing their success stories using vitamin C based products

Some DIY beauty gurus address this issue by remaking the vitamin C serum weekly to ensure it is always fresh and delivers results

Anti-Aging DIY Serum with Vitamin C & CoQ10 [Easy to Make] This post contains affiliate links

You can add couple drops of essential oils to have some scent

DIY Anti-aging Face Serum With Vitamin C & CoQ10 This simple face serum recipe is formulated to even out a skin tone and provide anti-aging effects, such as cell regeneration and reduced appearance of wrinkles

Of course, you can use it during the day too as Rosehip oil absorbs well