For skin health, Grape seed has been studied.
For skin protection from sunlight damage, grapeseed has shown promising results. If used properly, and applied 30 minutes prior to  UVA/UVB radiation, it has been reported to produce a 9% increase in sun protection.
Grapeseed has also been shown to reduce hyperpigmentation of skin. 25 mg of Pycnogenol three times a day for 30 days resulted in approximately 38% decrease in skin area affected by cutaneous hyperpigmentation.
If you have problem skin, grapeseed may help.
Other nutraceuticals that are promising for skin care include: carotenoids, polysaturated fatty acids, tea, soy, glucosamine and melatonin.
Taken in part from: Lockwood, B. ( 2007) Nutraceuticals. 2nd Ed.  Manchester, UK. Pharmaceutical Press