Recap of Side Effects: Mild Acne Joint Pain Reversible Liver Impairment Increased Aggression. As mentioned, because of the potency of YK-11 SARMs, you do not need a higher dosage to achieve efficacy. YK 11 is, however, known to have a half-life of twelve hours, so there are a couple of ways it has been taken, both of which are equally effective, sarms nutrition. In one scenario, it can be taken twice daily at 5mg per dose. If you do not feel like playing with that idea or know you may forget the second dose, you can go for option number two.Every SARMs vendor claims to sell highly effective and pure SARMs, sarms nutrition.