Its a 15-amino-acid peptide originally derived from a protective protein naturally found in human gastric juices, and it has been studied for more than 30 years by multiple independent research groupsmost notably teams in Croatia and Taiwan
Many people use them in the same routine without issue by waiting 20-30 minutes between applications, or more simply, use acids and CPs at different times of day (e.g., acids at night, CPs in the morning) or on alternate days
The amplification was performed by using TaqMan gene expression assays (Hs00167309, Hs00156308, Hs01110250, Hs00195591, Hs01566408, Hs04989912, Hs00958111, Hs04189111, Hs00426835, and Hs99999905) according to the manufacturers instructions
Each persons situation is different