•          water only
•          water and oils
•         water, conditioner and oils

If you are among the water only squad like me then this post isn’t for you because you do not have any problem.  But you might learn a thing or two so keep reading.

•          1 week?
•          2 weeks? 
•          3 weeks?
•          A month?

We do a whole lot of mixture in our spray bottle and forget to throw it out after a period of time. Yes that mixture in your spray bottle has a shell life because it contains mostly water.

1. Make small batches at a time:  Making small batches will help you use up the product while it’s still fresh.  Make one that can last you for 4 to 5 days and if it’s still remaining after a week, throw it out.  I know you’re thinking about how much the oils and conditioner inside cost but sister… pour it away.
2. Add essential oils:  there are some essential oils with anti-bacterial properties that can help keep bacteria at bay e.g. tea tree oil, Rosemary oil, lavender oil, just to name a few. Remember, just because you added a few drops of this oil doesn't mean you should use that mixture for eternity. 
3. Use Distilled water or boiled water: because water from the tap can sometimes contain bacteria, distilled water is your best bet.  If you do use tap water, make sure you boil and cool before use.
4. Chill it: This applies to any DIY you make. Sometimes putting the mixture in the fridge helps because cold temperatures keep the mold and bacteria from growing as quickly. This doesn’t mean it won’t grow; it just won’t grow as quickly as it would if left at room temperature.

Please do me a favor and toss that mixture in your spray bottle if you have been doing it wrong this whole time.