Ian Thorpe arrives ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Samantha Harris arrives ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Ryan Channing and Ian Thorpe arrive ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Priceline ambassadors arrive ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Samantha Harris and Ita Buttrose arrive ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Domenica Colivero arrives ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Jill Wright arrives ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Carissa Walford arrives ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.

Jill Wright arrives ahead of Priceline Pharmacy's 'The Beauty Prescription' live event at Royal Randwick Racecourse on February 22, 2018 in Sydney, Australia.