After a mum took to TikTok to praise the benefits of using expired breast milk as skincare, Helen Bell, a health expert and nutritionist, unveils whether the ‘Botox effect’ of breast milk really is true or just another fadAfter a mum took to TikTok to praise the benefits of using expired breast milk as skincare, Helen Bell, a health expert and nutritionist, unveils whether the ‘Botox effect’ of breast milk really is true or just another fad