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Thyroid hormone production support; Metabolic health; Nervous system support
Adults with low intake of iodine-rich foods or those with busy lifestyles seeking focused daily thyroid-related nutrient support.
Take 1 capsule twice daily with food and water; taking with meals can improve tolerance of minerals like zinc.
May contain traces of crustacean shellfish.
Iodine is required to form thyroid hormones T3 and T4, which help regulate metabolic activity throughout the body.
Caution: Consider total iodine intake from diet and supplements to avoid excess, which may be uncomfortable for sensitive thyroids.
L-tyrosine is an amino acid precursor used with iodine to build thyroid hormones and also supports production of catecholamine neurotransmitters.
Caution: May be stimulating for some people or interact with thyroid-related regimens; avoid close to bedtime if sensitivity to stimulation.
Selenium is a cofactor for deiodinase enzymes that convert T4 to T3 and for antioxidant enzymes that help protect thyroid tissue.
Caution: High selenium intake from multiple sources may cause unwanted effects like digestive upset; keep total daily intake moderate.
Zinc participates in thyroid hormone receptor function and supports enzymes involved in hormone metabolism and cellular signaling.
Caution: Zinc on an empty stomach may cause nausea; long-term high-dose zinc can affect copper balance.
Forskolin activates adenylate cyclase to increase cAMP, a messenger that may influence thyroid signaling and metabolic activity.
Caution: May lower blood pressure or interact with blood-thinning and certain respiratory medications; monitor tolerance and use with food.
Iodine and L-tyrosine provide the raw materials needed to build thyroid hormones, while selenium and zinc support hormone conversion and receptor activity. Coleus forskohlii influences cellular signaling through cAMP, complementing nutrient support for normal thyroid-related pathways.
Label Warning: For adults only. Do not use if pregnant or nursing. Avoid use if you have or have had low blood pressure, a blood coagulation disorder, or gastric ulcers. Do not use with prescription medications, especially blood pressure, blood-thinning, or anti-asthmatic medications. Stop use two weeks before surgery.
Who should be cautious: People with thyroid conditions, heart rhythm concerns, or sensitivity to stimulants may need extra caution due to iodine, zinc, L-tyrosine, and Coleus forskohlii. Those with shellfish allergies should note it may contain traces of crustacean shellfish. If taking medications that may interact, discuss with a healthcare provider before use.
Storage: Store in a cool, dry place.
Many users felt more energetic within 1–8 weeks and mentioned better sleep patterns.
Capsules are a manageable size with no odor, making them simple to swallow.
A few users mentioned changes like T3/T4 shifts or reduced bloating; experiences varied.
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
Combining L-Tyrosine with ashwagandha may support stress resilience and mental clarity, offering a holistic approach to stress management.
AI generated. Not medical advice.
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Thyroid hormones regulate metabolism and play a big role in growth, cell reproduction, and nerve function. Swanson Thyroid Essentials provides ultimate thyroid gland nourishment with specialized ingredients like standardized Coleus forskohlii, a little-known but powerfully beneficial herb, and recognized thyroid supporters like iodine, zinc, copper and B vitamins.
As a dietary supplement, take one capsule two times per day with food and water.
Rice flour, gelatin, magnesium stearate.
May contains traces of crustacean shellfish.
For adults only. Do not take this product if you are pregnant or nursing, or if you have or have had low blood pressure, a blood coagulation disorder, or gastric ulcers. Do not take this product if you are taking prescription medications, especially blood pressure, blood-thinning, or anti-asthmatic medications. Discontinue use two weeks prior to surgery. Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: 1 Capsule | ||
| Amount Per Serving | %Daily Value* | |
| Thiamin (from thiamin mononitrate)(vitamin B1) | 25 mg | 2,083% |
| Riboflavin (vitamin B2) | 25 mg | 1,923% |
| Niacin (as niacinamide) | 25 mg NE | 156% |
| Vitamin B6 (from pyridoxine HCL) | 25 mg | 1,471% |
| Folate | 40 mcg DFE (25 mcg folic acid) | 10% |
| Vitamin B12 (as cyanocobalamin) | 25 mcg | 500% |
| Pantothenic Acid (from calcium pantothenate) | 25 mg | 500% |
| Iodine (from kelp) | 100 mcg | 67% |
| Magnesium (from magnesium oxide) | 25 mg | 6% |
| Zinc (from zinc oxide) | 25 mg | 227% |
| Selenium (from selenomethionine) | 50 mcg | 91% |
| Copper (from copper gluconate) | 2 mg | 222% |
| L-Tyrosine | 150 mg | * |
| Coleus forskohlii (standardized to 10% forskolin)(root) | 50 mg | * |
| *Daily Value not established. | ||
