How does ascorbic acid become dehydroascorbic acid?

One of the simplest antioxidants is vitamin C. Vitamin C molecules can react to form dehydroascorbic acid by losing two hydrogen atoms from the hydroxyl groups attached to the ring part of the molecule, forming two additional ketone (carbonyl) groups.

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Subsequently, why is ascorbic acid easily oxidized?

Because the vitamin is an acid, it is reasonably stable in acidic solutions, but in neutral or basic solutions it is easily and rapidly oxidized by dissolved oxygen. The oxidation of vitamin C, ascorbic acid, is brought about by the loss of two hydrogen atoms as the vitamin is converted to dehydroascorbic acid. Consequently, what happens when ascorbic acid is oxidized? It is oxidized with loss of one electron to form a radical cation and then with loss of a second electron to form dehydroascorbic acid. It typically reacts with oxidants of the reactive oxygen species, such as the hydroxyl radical.

What type of vitamin C is best absorbed?

Ascorbic acid: Also called L-ascorbic and L-ascorbate, ascorbic acid is vitamin C in its purest form. It's the most bioavailable form, meaning it is readily absorbed by the body through the bloodstream. Which form of vitamin C is best for skin? For oily or normal skin, L-ascorbic acid is the most potent form of vitamin C and can be the most beneficial, while for dry and sensitive skin, magnesium ascorbyl phosphate, a water-soluble vitamin C, is less irritating.

Is there vitamin C without ascorbic acid?

There are several forms of vitamin C. In supplements, vitamin C usually comes in the form of ascorbic acid. However, some supplements contain other forms, such as sodium ascorbate, calcium ascorbate, or ascorbic acid with bioflavonoids. Is oxidized vitamin C serum still effective? “If it is oxidized, it becomes yellow or brown and is likely going to be less effective.” You can still use it if you want, but it won't do as much for your skin and, “very rarely, oxidized vitamin C products can even cause slight yellow discoloration of the skin,” Dr. Hogan says.

Which antioxidant is ascorbic acid?

Ascorbic acid (vitamin C) is primary antioxidant present in biological systems to counter oxidative stress. Ascorbic acid is oxidized into monodehydroascorbate or ascorbate free radicals and then into dehydroascorbate (DHA) in the presence of free radicals or ROS.