In response to your question, the following are some common over-the-counter (OTC) products that may help relieve mild anxiety symptoms, as well as purchase channels and precautions： --- ###**1. Over-the-counter options that may relieve anxiety** 1. **Herbal supplements** -**Valerian Root (Valerian Root)** -**Effect**: Traditionally used to calm and improve sleep, it may indirectly relieve anxiety. -**Note**: The effect varies from person to person and needs to be used continuously for several weeks. -**Kava pepper (Kava Kava)** -**Effect**: Some studies have shown that it may relieve short-term anxiety. -**Note**: Long-term use may damage the liver, and short-term, low-dose use is recommended. -**Chamomile (Chamomile)** -**Effect**: Contains Apigenin, which may have a mild sedative effect. It is often used in the form of tea or supplements. 2. **Amino acids and minerals** -**L-Theanine (L-Theanine)** -**Source**: Green tea extract, may promote relaxation without drowsiness. -**Magnesium supplement** -**Effect**: Magnesium deficiency may be related to anxiety, and moderate supplementation may help relieve it. 3. **Other OTC drugs** -**Diphenhydramine (Diphenhydramine)** -**Common products**: such as "Benadryl” (antihistamine). -**Effect**: Reduces anxiety through sedation, but may cause drowsiness. It is only for short-term use. -**Melatonin (Melatonin)** -**Applicable**: When anxiety is accompanied by insomnia, adjust the sleep cycle. --- ###**Second, the purchase channel** 1. **Offline purchase** -Pharmacies (such as CVS, Walgreens, domestic pharmacies), supermarkets or health food stores (such as GNC, Holland & Barrett). 2. **Online purchase** -E-commerce platforms (Amazon, iHerb, Tmall International, etc.), pay attention to choosing regular merchants. --- ###**Three, important precautions** 1. **Limited effect**: The effect of the above products varies from person to person, and there is a lack of strong clinical evidence to support it. Severe anxiety requires medical attention. 2. **Side effects and contraindications** -Herbal medicines may interact with prescription drugs (such as antidepressants, blood thinners). -Pregnant women, lactating women, or those with liver and kidney insufficiency should be used with caution. 3. **Priority non-pharmaceutical methods** -It is recommended to combine deep breathing, mindfulness meditation, regular exercise, etc. to relieve anxiety. --- ###**4. When will you seek medical attention? ** If anxiety lasts for more than two weeks, affects daily life, or is accompanied by symptoms such as palpitations and chest pain, please consult your doctor immediately. Prescription drugs (such as SSRIs) or psychotherapy may be more effective. --- Please choose carefully according to your own situation, and give priority to consulting a medical professional to ensure safety.