Its not caused by the coronavirus itself, since both the Moderna and Pfizer vaccines are MRNA vaccines that dont contain the virus
PMC What to expect at 8 weeks: More noticeable brightening of dull or uneven areas Reduction in pigment spots, sun spots, or mild freckles Skin tone looks more even, with softer transitions between light/dark zones Better radiance, not just lightness Complementary skincare results (like from sunscreen, vitamins) become more evident However, results still differ widely between people
In short, its a gradual process, not an overnight change
Your nurse will adjust your schedule based on your results
More recent studies expanded this work
Once received, the vials should be stored in a freezer at -20C for long-term preservation (up to 3 years) or refrigerated at 2C to 8C if they are to be reconstituted and used in active research protocols within 12 months