Synergy provides premium nutrition, because your health is too precious to be making sacrifices.
Underactive or overactive thyroid function may contribute to weight loss or gain, poor digestion, poor sleep, poor circulation, poor skin health and more. Nutritional support for healthy thyroid function. What is Thyroid Support Complex with L-Tyrosine? Vitacost-Synergy Thyroid Support Complex with L-Tyrosine 300 Capsules A number of factors, including poor diet, lack of physical activity, being overweight, illness, medication and stress, can negatively affect thyroid function.* The thyroid is a small, butterfly-shaped gland in the front of the neck.