The 34-year-old actress - who has two children, 11-year-old daughter Ava and seven-year-old son Deacon, with ex-husband Ryan Phillippe - is backing cosmetic firm Avon`s new empowerment charm bracelet, which is being sold for £5 in the UK to raise funds for domestic violence charities Refuge, Women`s Aid and Unifem.
Reese, who is an Avon Global Ambassador and Honorary Chair of the Avon Foundation for Women, said: "Although the problem may seem insurmountable, there are ways for women and men everywhere to help bring an end to violence against women across the globe.
"The Avon Empowerment Bracelet is a simple, but powerful, way to raise funds to reduce violence against women. As a woman and as a mother, I urge you to join me and end this epidemic by wearing and giving the bracelet to friends and family."
To date, Avon`s empowerment jewellery has helped raise over £11 million for domestic violence charities worldwide, including £400,000 to UK organisations.