SCS - Why are my BioShield MD capsules a different shade of orange compared to my last bottle?
The use of turmeric/curcumin extracts may offer a variety of shades of yellow/orange to brown, depending on the color of the root's flesh and that environmental/seasonal factors can also be a cause of it. Turmeric is very rich in color, so the brightness is not a bad indicator.
The good thing about curcumin is that discoloration does not mean that it is less potent/not as effective. In fact, most commercial curcumin extracts can be shelf stable up to 3-4 years!