Research suggests fixed doses provide adequate tissue exposure regardless of body size within normal ranges
Santi, D., Granata, A
Symptoms: lightheadedness, shakiness, fatigue, blurred vision Management: Always pair with post-workout carbs (e.g., CLEAN CARBS) and avoid fasted use unless experienced IGF1 induces insulin-like effects, including hypoglycemia, particularly at supraphysiologic doses. LeRoith et al., Diabetes Reviews Injection Site Irritation Repeated injections, especially IM, may cause localized inflammation or discomfort
Frijhoff J, Winyard PG, Zarkovic N, Davies SS, Stocker R, Cheng D, Knight AR, Taylor EL, Oettrich J, Ruskovska T, Gasparovic AC, Cuadrado A, Weber D, Poulsen HE, Grune T, Schmidt HHHW, Ghezzi P
This is the right choice if youre specifically targeting nasal delivery for its higher bioavailability or potential neurological benefits
Kim JH, Wu TH, Budde MD, Lee JM, Song SK (2011) Noninvasive detection of brainstem and spinal cord axonal degeneration in an amyotrophic lateral sclerosis mouse model