If you are looking for a hormone that affects , verified options include:

: High levels of IL-23 contribute to multi-organ inflammation, which can indirectly impact sex hormones (estrogen and testosterone) and fertility. ( Source )

: Thermal stress studies conducted at 21–23°C (pre-stress baseline) show that hormones like prolactin and cortisol vary significantly during heat exposure, particularly in pregnant women. ( Source )

: Methods for monitoring progestagens involve allowing samples to sit overnight at room temperature (23°C) to ensure chemical stabilization before assaying. ( Source ) 📋 General Hormone Report Parameters

: Studies show that FGF-23 (Fibroblast Growth Factor 23), often studied alongside parathyroid hormone (PTH), suppresses intestinal magnesium absorption, impacting skeletal homeostasis. ( Source ) 🌡️ Laboratory Observations at 23°C

If you are looking for a genuine hormone that affects or immune function , consult a physician about:

Maintaining healthy PTH levels is largely about supporting calcium and Vitamin D homeostasis.

However, given that "23c" resembles a naming scheme (e.g., 1,25-dihydroxyvitamin D3), the most scientifically plausible interpretation is that you are referring to a synthetic analog of Vitamin D (calcitriol) or a mislabeled glucocorticoid/mineralocorticoid .

Many people experience a period often dubbed "second puberty" around the age of 23. This isn't a medical term, but it describes a final surge in maturation before hormonal levels stabilize for the long term.

💡 : If you are looking for a specific lab result titled "23C," it is likely a reference to Interleukin-23 levels in an inflammatory panel or an FGF-23 test for mineral metabolism.

: In men, testosterone levels generally remain high and stable throughout the early 20s, supporting peak bone density and muscle-building potential before a very gradual decline begins in later decades.

: Supporting the endocrine system requires healthy fats (for steroid hormone production) and adequate fiber (to help clear excess estrogen from the body).