Sometimes people dont notice an immediate benefit, but rather realise a few weeks later that they are starting to feel as they were before the injection
I tried one myself not too long ago (it was called Peach Ring Punch, and yall, it was tasty )
These particles cause injection site irritation and inconsistent dosing because peptide concentration varies throughout the vial

Vitamin D3 Strengthens bones, Immune defense, Elevates mood $25 Read Benefits Supports bone health and strength Enhances calcium absorption Boosts immune system function Improves mood and helps alleviate depression Supports cardiovascular health Promotes healthy muscle function Aids in weight management Reduces inflammation Supports respiratory health Helps regulate insulin levels Lipo-B Speeds metabolism, Burns stubborn fat, Boosts energy $35 Read Benefits Boosts metabolism and aids in weight loss Enhances fat burning and energy production Supports liver health and detoxification Promotes healthy skin, hair, and nails Improves mood and mental clarity Supports immune system function Enhances athletic performance and recovery Aids in the breakdown of fats and carbohydrates Reduces fatigue and increases overall energy levels Supports cardiovascular health Lipo-C Accelerates fat loss, Supports liver detox, Enhances metabolism $40 Read Benefits Boosts metabolism and aids in weight loss Enhances fat burning and energy production Supports liver health and detoxification Promotes healthy skin, hair, and nails Improves mood and mental clarity Supports immune system function Enhances athletic performance Aids in the breakdown of fats and carbohydrates Reduces fatigue and increases overall energy levels Supports cardiovascular health, with the added benefit of carnitine Why Choose Vitamin Shots at Revived Personalized Wellness

Outeirino-Iglesias V, Romani-Perez M, Gonzalez-Matias LC, Vigo E, Mallo F (2015) GLP-1 increases preovulatory LH source and the number of mature follicles, as well as synchronizing the onset of puberty in female rats
In the first half reaction, NADPH reduces FAD present in glutathione reductase to produce a transient FADH- anion, which breaks a disulfide bond of Cys58 - Cys63, forming a short-lived covalent bond between the flavin and Cys63