Its hard to estimate because lots of people who have it may not get an official diagnosis
While food alone is rarely enough to correct a significant deficiency, its a vital part of maintaining healthy B12 levels for the long term
Topical side effects: - Mild scalp redness or irritation (5 to 10% of users), typically resolves within days - Temporary shedding increase during the first 2 weeks (adjustment phase) - Contact dermatitis in rare cases, usually from other ingredients in the serum formulation Injectable side effects: - Injection site redness or swelling (resolves within hours) - Mild headache in the first week of use (uncommon) - See the GHK-Cu injection dosage guide for full safety data The copper uglies explained: This is the most important side effect to understand
You may notice slight swelling, redness, or bruising following Bellafill injections
Perrem K, Colgin LM, Neumann AA, Yeager TR, Reddel RR (2001) Coexistence of alternative lengthening of telomeres and telomerase in hTERT-transfected GM847 cells
But keeping that peptide stable and potent for your experiments