Thanks, see above Durantia.
Also too, it is not just for thyroid only but it actually has many other benefits like lower inflammation, immune system benefits, skin benefits, hormone benefits, digestion, neuro protective, anti aging etc.
It is similar to R andro in the sense of it being a thyroid "surrogate". Niacinamide increases NAD levels which is the coenzyme for all neurosteroid and steroid production in the body and brain so when you take it with caffeine which increases neurosteroids and DHT in the brain the result is even greater than just taking caffeine alone. The aspirin acts like a "regulator" per say in keeping everything in check like caffeine from turning into a stress response, since aspirin lowers cortisol/adrenaline which caffeine can increase when there is insufficient glucose. Aspirin also has anti estrogenic and pro testosterone and pro metabolic benefits on top of that including increasing ATP in the brain and preventing and reversing cancer.