Here is what I found. And once I understood it, everything made sense.
Your skin needs two specific fatty acids — GLA and SDA — to stay healthy, hold itself together, and protect you from the inside.
Most people produce enough. But for many people with eczema, something interferes with that process.
For some it is gut health, the gut plays a key role in how the body absorbs and converts dietary fats into what the skin actually needs.
For others it is genetic, a variation in how a specific enzyme functions.
For some it is a combination of both. The exact reason is different for everyone.
But the result is often the same: the body cannot produce or convert enough GLA and SDA — no matter how well you eat, no matter how many healthy foods you eat.
This is not your fault. And it explains why nothing you have put on your skin has ever fully fixed it.
Here is the simple version:
The part that changed everything for me: it does not matter how well you eat. If your body cannot make GLA efficiently, eating more healthy fats does not help.
Our Eczema type body needs GLA already made, ready to absorb. That is the difference between every supplement I had tried and the one that actually worked.
What GLA Does
Your skin has a natural protective layer — thin but incredibly important. It is made up of skin cells bonded together by a network of fats and lipids.
GLA is one of the key fats that holds that network together.
When GLA levels are low, the layer becomes porous. It cannot hold moisture in. It cannot keep irritants out.
That is where the dryness, the cracking, the itch, and the flares come from, your skin's own barrier failing to do what it is designed to do.
Your eyes work on a similar system. Tiny glands just inside your eyelids produce a thin oil layer that sits on top of your tears and stops them evaporating too quickly.
GLA is what those glands need to make that oil. When GLA is low, the oil layer becomes thin. Drops replace the water underneath — but without the oil layer holding it in place, the moisture evaporates within minutes.
That is why drops wear off so quickly. They were never addressing the right layer.