New Era Comb L contains calc fluor, ferr phos and nat mur. Calc fluor is the tissue salt most often associated with firmness and elasticity in supportive tissue, ferr phos is commonly linked with circulation and tissue oxygenation, and nat mur is traditionally used where fluid balance and swelling are part of the picture.
That makes New Era Comb L one of the more specific products in the New Era range. It is usually chosen when heavy, tired legs or visible veins are the main concern. Biotin is included too, although the real focus here is the tissue salt trio rather than the added nutrient.
Calc fluor is the ingredient many buyers look for first in a vein support formula, because it is the tissue salt traditionally linked with resilient vessel and connective tissue support. Ferr phos and nat mur then broaden the formula toward circulation and fluid comfort.