If you have never used one: patch test first. Inside of the wrist, then wait a few minutes. Reactions vary more here than in any other category we sell.
If tingling is not what you are after: look for a warming formula or a plain serum. Menthol is the ingredient that produces the buzz. Not everyone likes it and there is nothing wrong with being in that camp.
If you're sensitive or prone to irritation: glycerin-free, and go easy on anything with a strong menthol note. Sensitive tissue and tingle ingredients are a poor match.
If a toy or penetration is involved: add a lubricant. A gel absorbs and will not cut friction on its own. Pair it with a water based lube.
If you're postpartum, breastfeeding, or dealing with dryness: skip this category for now. Start with a plain lubricant or an intimate moisturizer. Warming and tingling formulas are the wrong tool for tissue that is already sensitive. The postpartum collection is built for that instead.
If nothing here is working: a gel is not a treatment. Persistent low arousal has causes worth investigating properly. We are not clinicians and would rather say so than sell you a third bottle.