I have sensitive skin — should I avoid this serum because of the orange peel oil?

The formula contains orange peel oil as an aromatic note, so the product has a citrus scent. Some people find citrus oils irritating or sensitizing, especially if their skin is already reactive or if they have had reactions to fragrances in cosmetics. That does not automatically mean the serum is unsuitable, but it is a reason to patch test first. Apply a small amount to a discreet area, for example the inside of the forearm or behind the ear, and wait at least 24 hours to see if redness, burning, itching or breakouts develop. The vitamin C source here is sodium ascorbyl phosphate, a stable water-soluble derivative, and some people who do not tolerate pure ascorbic acid find derivatives gentler. However, the product instructions still say that if your skin is very sensitive or reactive to active cosmetics, you should introduce the serum gradually and watch how your skin responds. The glycerin in the formula helps attract water to the skin, but it does not change the fact that the orange peel oil may be a trigger for some individuals. If you have a known citrus allergy or avoid essential oils in skincare, it is better to consult a specialist or choose a product without orange peel oil. Stop using the serum if stinging, persistent redness or discomfort occurs.