There are ways to deal with acne on a natural, chemical-free level. Pictured: A model wears Dr. Jart+ skincare during Dr. Jart+ for DKNY Fall/Winter 2016 Show Getty Images/Anna Webber

Acne is a skin issue that knows no age, although it is particularly in full-force when a teenager hits puberty. The changes in one's hormones is a common cause for the breakouts, but it can also be triggered by the food we eat, lifestyle choices, the environment and genes.

According to the Mayo Clinic, the four primary acne causing factors are: overproduction of oil in the glands, bacteria, excessive activity of androgens (a hormone), and hair follicles being clogged due to dead skin cells and oil. The face, chest, upper back, shoulders and forehead are their favorite breakout spots because it is these areas that produce the most sebacious oils.

Aside from hormones, certain types of medications can trigger acne, including those that contain testosterone, corticosteroids and lithium. Ones diet also plays a major role in either triggering acne or making it worse, such as carbohydrate-rich foods and skim milk. Fortunately, there are ways to deal with acne on a natural, chemical-free level. Here are some of them.

1. Zinc supplement

Zinc is an essential mineral that enhances the immune and metabolic functions, as well as cell growth. Those with bad skin are typically low in zinc, that’s why they are often asked to take supplements to fill the gap. The recommended dose of zinc for acne is between 30 to 45 mg per day, although this still requires further studies.

2. Green tea

Green tea is rich in antioxidants, tannins and flavonoids, which are known to combat bacteria and reduce inflammation. Its major ingredient, EGCG (epigallocatechin-3-gallate) has been observed to limit the production of sebum and inhibiting the growth of P.acnes on the skin of those with already have acne.

3. Apple cider vinegar

ACV has plenty of skin treating properties and healing acne is one of them. It is rich in several types of organic acids that can help prevent the growth of bacteria and viruses, as well as suppress inflammation. To use, it is recommended to dilute one part of ACV to three parts of water and use as an astringent twice a day, as needed.

4. Aloe vera

Aloe is best known for its ability to treat burns, fight infection and inflammation, and reduce scarring. Applying this in pure form to your acne twice a day, or as often as desired, can support the healing process. You can buy aloe vera extract from health food shops, but you can also plant one yourself so you can get it straight from the source.

5. Witch hazel

Witch hazel comes from the leaves and bark of the witch hazel shrub. It is commonly used as an astringent to help dry out pimples and shrink blemishes, in addition to dealing with eczema, dandruff, insect bites and burns. For optimal results, apply it to your face in the morning and the evening to treat acne.