Guides self-injection, sourced.
Plain-language guides on Guides — needle and pen-needle selection, injection technique, storage, and the published evidence behind each. Sourced against the FDA, EMA, NICE, NHS and peer-reviewed literature.
§ Articles · 4 ARTICLES
Subcutaneous vs intramuscular testosterone: what the UK evidence says about route of administration
What the licensed indication is, what the published trials actually compared, and where 29G subcutaneous fits alongside traditional IM injection.
Hydroxocobalamin vs cyanocobalamin vs methylcobalamin: which B12 injection is right?
What the UK NHS, BNF and BSH guidelines say about each form, the pharmacokinetic differences that actually matter, and where the supplement industry has overstated the case for methylcobalamin.
Injecting thick-viscosity medications: a technique guide for testosterone esters and oil-based injectables
Why oil-suspended testosterone, Nebido and progesterone-in-oil need different equipment than aqueous injectables, and a practical technique walkthrough.
Testosterone for menopausal women in the UK: NICE, BMS and the equipment question
What the NICE menopause guideline and the British Menopause Society Tool for Clinicians say about female testosterone, what's actually licensed, and the equipment side most articles ignore.
§ Supplies
29G supplies for Guides.
Sterile, single-use, ISO 7864 / ISO 11608-2 certified, shipped from Spain.