There’s no denying it: back to school is a germy time of year. Regular hand-washing is undoubtedly your best line of defense, but this easy-to-make hand sanitizer is wonderful for keeping germs and cold bugs away when you’re on the go.

Just like ready-made sanitizers, this DIY version relies on alcohol to kill bacteria and germs, but because it’s tempered with the natural moisturizer and humectant vegetable glycerin, the formula won’t dry out your hands. These sanitizers are naturally scented with essential oils — I’ve got five great combinations for you to try out, or get creative and invent your own blend!

You’ll Need:

• 2 ounces 70% rubbing alcohol
• ½ teaspoon vegetable glycerin
• Essential oils (see below for suggestions)
• Add all ingredients into a 2-ounce spray bottle or pump bottle. Shake to combine.

To Use: Shake well and spray onto hands. Rub hands together until dry.

Combo #1: Bright + Citrusy

• 10 drops Mandarin Essential Oil
• 5 drops Grapefruit Essential Oil
• 5 drops Bergamot Essential Oil

Combo #2: Sweet + Floral

• 8 drops Ylang Ylang Essential Oil
• 8 drops Chamomile Essential Oil
• 4 drops Lemon Essential Oil

Combo #3: Earthy + Grounding

• 8 drops Rosewood Essential Oil
• 6 drops Balsam Fir Essential Oil
• 6 drops Frankincense Essential Oil

Combo #4: Fresh + Zesty

• 8 drops Lime Essential Oil
• 6 drops Basil Essential Oil
• 6 drops Spearmint Essential Oil

Combo #5: Minty + Herbal

• 6 drops Rosemary Essential Oil
• 6 drops Peppermint Essential Oil
• 6 drops Lavender Essential Oil