Glutathione Injections: Benefits, How It Works & Telehealth Modern Endocrine Intramuscular vs Subcutaneous injections what's the difference? At KDR, we often use peptides and wellness injections like NAD, glutathione, and HCG, but they are not all administered the same way. Intramuscular injections ( PUSH Med B12 + Lipo B + Skinny Shot + Glutathione Greenville, SC PUSH Med IV Bar, IV Lounge IM Injections Revive at The Group Med Spa