With Valentine's Day quickly approaching, it means a rise in the sales of condoms and personal lubricants. But did you know that the majority of personal lubricants on the market contain petrochemicals and preservatives that can be absorbed by your body and over time can lead to nerve, liver and brain damage, and cancer? Now that's a mood killer.

But fear not, there is a solution. In the spirit of the forthcoming holiday, here's this informative video from Grist on how to make your own Earth (and people) friendly lubricant. All you need are flax seeds, which can be found at your local natural foods store, and water. Easy and cheap. (Not that I'm implying that you are.)

Bonus: You can also use the flax mixture as hair gel – but not after you've used it as lube.

Want to 'go green' in the bedroom? Then be sure to check out this post on eco-friendly sex toys.

Video after the break: