Customers say they're getting sunburns after using Jessica Alba's sunscreen

Customers are taking to social media to voice their displeasure with Jessica Alba's The Honest Company, saying they suffered painful sunburns while wearing the company's SPF 30 sunscreen.

People are posting photos of their red and sunburned heads and shoulders, which they claim happened while wearing The Honest Company's broad-spectrum, SPF 30 honest sunscreen lotion.

Broad spectrum SPF sunscreen is defined by the American Cancer Society as sunscreen that has been tested and shown to protect against both UVA and UVB rays.

The sunscreen is currently rated 2.9 out of 5 stars on Amazon. Many of the reviewers shared similar images of harsh sunburns.

"We were all extremely burned! Especially my little 2 year old! She had blisters on her shoulder! It is so sad! Worst product ever!" wrote Amazon user Jaymie Chapman.

"My daughters back looked like a tomato and even blistered in one spot! I started talking to friends about it and turns out they had the same problem," wrote Amazon user frogger90.

The Honest Company provided ABC with the following after receiving criticism over their sunscreen:

According to the Skin Cancer Foundation, one blistering sunburn in childhood or adolescence can double a person's chances at developing melanoma later in life. The foundation recommends that people should seek shade, cover up with clothing including a wide-brimmed hat, and wear UV-blocking sunglasses in addition to wearing sunscreen when spending time outside.

The Honest Company posted the following statement to its blog Monday night, saying their sunscreen passed all SPF 30 testing requirements, but that they are reaching out to those who have been posting complaints on social media.