For me:
all natural water based conditioners without glycerin, without protein and without shea butter work great all around the year.
(= they all have the following ingredients: water or infusion or aloe, emulsifiers and fatty alcohols, extracts or oils, preservative)
Seeing as I'm unlucky and my hair rejects pure aloe or pure shea butter, I will learn to make my own simple leave in with olive oil and distilled water as main ingredients, as it will save me money and I don't want to rely on specific products / I want to moisturize as often as possible without having to calculate my expenses.