Fish Oil Supplements
Yes, many people find that taking both provides comprehensive cellular support
Johns wort, as it can interact not only with antidepressants, but also with cardiovascular medications, like anticoagulation and anti-arrhythmic drugs
Some uncommon side effects that could occur are some weakness, nausea, bowel problems, dizziness, lethargy, weight loss, thirst, nervous irritability, itchy skin, frequent urination, high levels of calcium
In skin specifically, GHK-Cu has been extensively studied for its ability to increase collagen and elastin production, improve skin thickness and elasticity, reduce fine lines and wrinkles, improve skin firmness, reduce photodamage, reduce hyperpigmentation, and accelerate wound healing