A self-described 'holistic health princess' has come under fire from fans after promoting a fundraiser to support victims of the NSW bushfires.

Sarah Stevenson, known to her Instagram followers as Sarah's Day, announced on Wednesday that $1 from every one of her products sold on La'Bang Body would go towards the St Vincent's Bushfire Appeal.

Watch her message to fans in the video above

La'Bang bills itself as a "global brand" which includes "hydrating body oils, heavenly hair treatments, streak-free self-tanners and scrumptious scrubs, which are all 100% vegan-friendly and designed to bring out your natural beauty".

"I was donating to some of the charities and I was thinking 'What else can I do to give back to the bushfire victims and everyone involved?'," she said in an Instagram story.

"If you purchase one of my products with La'Bang, then $1 will go towards that [the appeal] and I'm just so happy that I can give back."

A fire near the Pacific Highway, north of Nabiac in the Mid North Coast region of NSW, Tuesday, November 12, 2019. Credit: DARREN PATEMAN / AAPIMAGE

Stevenson said she had thought about making a GoFundMe but that the 48-hour promotion was something she could do that "everyone could get involved in".

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A link to Stevenson's products on the La'Bang Body website shows products for sale that range in price from $16.95 to $58.95.

Soon after promoting the fundraiser, Stevenson was back on the social media platform, telling fans she "could not train" at the gym due to the "hate" she had received.

One commenter said the "hate" was "the market's response to your underwhelming offer of charity".

"$1 per product is a cop out," user Matthew Campbell wrote.

Chevron Right Icon 'A cheap trick to boost profit.'

"Go 50% or 100% of proceeds for 48 hrs to be genuine. It's currently a cheap trick to boost profit."

One commenter said the "hate" was "the market's response to your underwhelming offer of charity". Credit: INSTAGRAM

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Stevenson said she had been "so excited to share that donating opportunity with you guys because I thought it was a fun idea for all of us to get involved".

"La'Bang called me like two hours ago and they said 'Hey, let's do this fun $1 activation' and I said 'OK, cool'. They send me the post, I uploaded it, we were like 'Yeah, this is fun'," she said.

Another commenter slammed Stevenson for her "insensitive" use of 'fun' in relation to the promotion.

"Stop using the word fun," Mel Bakewell wrote.

Chevron Right Icon 'Stop using the word fun.'

"'Fun way to get everyone involved' its (sic) truly insensitive and to clap back at the people who called you out for it shows you actually don't understand the issue."

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The influencer said it was a classic example of the age-old adage that "you're damned if you do, you're damned if you don't."

"If I hadn't done anything with my products to support the bushfire foundation, I would've got hate," she said.

"If I promote 100 per cent of the profits, I still get hate for promoting my products. We say 'a dollar activation', I still get hate.

Victorian Country Fire Authority crews are seen preparing to put in containment lines at the Gospers Mountain fire near Colo Heights, north west of Sydney, Wednesday, November 13, 2019. Credit: DAN HIMBRECHTS / AAPIMAGE

"So, the amount of hate we just got is actually disgusting. We were trying to do something fun that was going to give back to everyone and yeah, I'm really disappointed in like 20 per cent of the people because this was coming from a really honest, authentic, giving place."

Messages of support

Some fans offered messages of support, one saying she was "appalled that anyone would question" Stevenson's motives.

"What awful people! I hope you are ok. Please don't let nasty people dull your shine," Julie Brown wrote.

Millions of NSW residents breathed a sigh of relief on Wednesday after Tuesday's catastrophic fire danger passed without loss of life.

The Rural Fire Service (RFS) confirmed that at least 50 homes were damaged or destroyed on Tuesday but there had been no fatalities.

7NEWS.com.au has contacted both Stevenson and La'Bang for comment.