Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of skin-care products maker Nu Skin (NYSE:NUS) jumped 13% today, after a bullish third-quarter earnings report.

So what: Revenue roared ahead 23%, to $526 million, while EPS grew at a similar pace to $0.87 per share, well ahead of expectations of $0.77 cents. Growth was largely fueled by China, where sales increased 64%, to $137 million, and its South Asia region, which grew by 47%. The maker of anti-aging products also raised its full-year EPS forecast to $3.33-$3.37 from $3.16-$3.24, and increased revenue guidance.

Now what: Nu Skin's Asian growth numbers look especially promising and, considering that the stock is still trading at a P/E of 14, 23% top-line growth could make it an excellent buy. Look for analysts to boost their estimates in the wake of this report, which could send the price up even further.

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Jeremy Bowman has no positions in the stocks mentioned above. The Motley Fool has no positions in the stocks mentioned above. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.