Hemp. Hemp has GLA (gamma-linolenic acid, rare anti-inflammatory omega-6); Grapeseed has high linoleic but no GLA. Hemp wins for genuine inflammation.
For visibly irritated, redness-prone skin, hemp's omega-3 content gives it the calming edge. Grapeseed is the lighter all-purpose pick with gentle astringency for congested skin. Sensitive and reactive: hemp. Oily and congested: grapeseed.