What is paba?

Here's some information about PABA (Para-Aminobenzoic Acid):

PABA, or Para-Aminobenzoic Acid, is an organic compound with the formula H2NC6H4CO2H. It's an aromatic amine, meaning it has an amine group attached to a benzene ring.

• Sources: PABA is found in foods like grains, eggs, milk, and meat. It is also produced by bacteria in the gut.

• Uses:

  • Historically, it was a component of some sunscreen formulations. However, due to concerns about photosensitivity and staining of clothing, its use in sunscreens has largely decreased.
  • PABA is sometimes used as a dietary supplement, though its effectiveness for various claimed benefits is not well-supported by scientific evidence. Claims include benefits for skin conditions, hair loss, and fertility.
  • It is an important intermediate in the biosynthesis of folic acid (vitamin B9) by bacteria, plants, and fungi.

• Concerns:

  • As mentioned, PABA can cause allergic reactions in some individuals, particularly when used topically.
  • It can also interact with certain medications, such as sulfonamides, reducing their effectiveness.
  • The safety and efficacy of oral PABA supplements are not definitively established, and more research is needed.