The secret to full, gorgeous hair? Flaxseed oil! This cooking oil is rich in vitamins B and E, which nourish hair follicles to power up growth and ensure new strands are stronger and less prone to damage. Meanwhile, the fatty acids in flax oil protect against free-radical damage on the scalp to prevent inflammation that leads to hair loss. Plus, the acids moisturize tresses to make hair look even thicker and more lush. To get the benefits, I recommend including 2 Tbs. of flax oil in your daily diet. Try equal parts flax oil, olive oil and balsamic vinegar for a hair-healthy salad dressing.