Investors with an interest in Cosmetics stocks have likely encountered both Helen of Troy (HELE) and e.l.f. Beauty (ELF) . But which of these two companies is the best option for those looking for undervalued stocks? Let's take a closer look.The best way to find great value stocks is to pair a strong Zacks Rank with an impressive grade in the Value category of our Style Scores system. The proven Zacks Rank emphasizes companies with positive estimate revision trends, and our Style Scores highlight stocks wit ...