Covering up Spider Veins is like burying your head in sand
Get them treated with sclerotherapy or laser vein therapy. It is better not to mask them because as time goes on, they can get matted and as they break down, blood will extravasate and the hemosiderin deposition can cause brown dicoloration of the skin which may not be treatable.
Masking them is like putting your head in the sand like an ostrich and ignoring the problem.
Options to cover up and remove spider veins
Spider veins are effectively treated with injections or laser. Lifelong cover-up is rarely a long term solution for unsightly and progressive spider veins. Surgery90210
Camouflaging spider veins
Of course sclerotherapy is the gold standard for treating these small veins, but if you are in a pinch for time and need camouflaging, I recommend a matte, heavier coverage make-up such as CoverMark or Dermablend. Ulta salon also carries similar lines. Additionally, Sally Hansen carries an airbrush canister that is specifically for leg blemish coverage. It is consistently recommended by professional makeup artists.
treat with sclerotherapy. asclera or sotradecol work best. treat reticular veins with foam sclerotherapy.
We recommend treatments of sclerotherapy and/or laser for spider veins, followed by about a weeks worth of wearing compression stocking.
If you just wanted to "cover up" the spider veins, consider wearing compression stockings which are thick enough to "cover" them up.
I don't recommend the common practice of tanning to help hide spider veins. Tanning in itself has some risks, and tanning then would get in the way of laser treatments. Perhaps for "cover up" you could try "fake tan" or tinted sun block!