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Heat a pot or kettle of water until it’s nearly boiling. Place a green tea bag in a mug. Pour the hot water over the tea bag. Let your tea steep for about 5-10 minutes. Wait for the green tea to cool, which takes about 30 minutes. Add 5-10 drops of tea tree oil if you have oily skin or acne. Pour the cooled tea into a clean, reusable bottle. Use your fingers to apply the toner to your skin after cleansing.
Heat the water over high heat until you see bubbles start to rise from the bottom. Then, remove the water from the heat to use for your tea. The water doesn’t need to be boiling. If it starts to boil, that’s totally okay. However, it will take your tea longer to brew and cool down. Use an 8 to 12  fl oz (240 to 350 mL) mug to brew the green tea so you have a good batch of toner. Put the bag on the bottom of the mug and drape the string over the side. If you prefer to use loose tea, put about 1-2 tbsp (2-4 g) of tea into a strainer, then put it into the mug. Use a towel to protect your hand as you slowly pour the water into the mug. Once the mug is nearly full, set the pot on a cool stove burner or a towel. Then, gently swish your tea bag around in the cup to distribute the green tea. Your water should immediately start to turn a muddy green color. Drape the string on your tea bag or strainer back over the edge of your mug. Then, set a timer for 5-10 minutes and leave your tea to steep. Once the timer goes off, remove the tea bag and either discard it or save the tea leaves for another treatment. You can make a mask using brewed tea leaves. See the recipe below in the section about masks. Don’t put hot green tea on your face. Instead, set a timer for 30 minutes and leave the mug to cool. After the timer goes off, test the tea with your fingertips to make sure it’s fully cooled. It’s okay if the tea is a little warm. While this is optional, it can help treat oily or acne-prone skin. Simply hold your bottle of tea tree oil over the green tea and sprinkle 5-10 drops into the brewed tea. Gently stir the mixture to combine the ingredients. You can find tea tree essential oil at local health food stores or online. Use a spray bottle or airtight container to hold your toner. Hold your container over the sink, then slowly pour the toner from the mug into the container. Finally, screw on the lid. Pour a little toner into your hand, then use your fingers to rub it onto your face. Apply more toner to your skin as necessary to cover your entire face.  If you used a spray bottle, you can simply spritz the toner onto your face. Use your toner once or twice a day after washing your face.