We'll admit, we've never heard of this one before, but apparently some cosmetics have gluten in them – AND it could be what's causing your skin to break out.

It's certainly a lesser-known fact that gluten is an ingredient in many beauty products, and it can cause problems just like when we ingest it.

Many in Ireland suffer from gluten intolerance, and also 15- 20% of us will suffer from a condition called Dermatitis Herpetiformis which makes the skin red and inflamed when gluten is ingested.

Dr Peter Green spoke to InStyle and said: "We tell Celiac Disease patients and those with Dermatitis Herpetiformis to avoid gluten lipstick because they can ingest it."

However, he also admitted that, "it remains controversial and more studies need to be done to fully understand its role."

So, it turns out gluten might play a bigger role with our skin than we once thought.