For these uses, you want the compound to stay in the gut which is exactly what oral delivery achieves
I draw up two syringes with needles - I now s.c
Taylor C, Greenlund S, McGuire L, Lu H, Croft J
Dietary ConsiderationsDairy/ Milk Free Gluten Free Soy Free Non-GMO Serving Size: 3 Capsule Servings Per Container: 30 Amount Per ServingDried Yeast Fermentate (EpiCor)(Saccharomyces cerevisiae) 500 mg Lactococcus lactis strain Plasma (IMMUSE Postbiotic) 50 ButyraGen 200 mg Spore Probiotic Blend (Bacillus Coagulans (SNZ 1969), Bacillus Subtillus (SNZ 1972), Bacillus Clausii (SNZ 1971)) 12 CFU Other Ingredients: Vegetable Capsule (Hypromellose), Rice Powder, Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide Dosage: Take 3 capsules daily at least 1hr away from food or drink other than water, or as recommended by your healthcare professional $89.99 Based on the input and protocols of thousands of doctors, these customized packets were specifically designed to help patients easily and conveniently achieve their health goals
doi:10.1152/jappl.1997.83.5.1756