It won't penetrate the wood unless you remove the previous finish, but you can sometimes achieve a similar look with a wash or dry brushing over an existing finish. (maisondepax.com)
A little wave spray and air drying your strands is an easy way to achieve a similar look without sweating in the process. (instyle.com)
Also — I have linked similar pieces below to achieve a similar look reflected in the images within this post. (texturesofgrace.com)