Isabella Loneragan - Principle

Isabella Loneragan is one of Sydney's best and most experienced skin therapists offering expert acne, rosacea, pigmentation plus cosmetic and anti-ageing treatments. She's also recently qualified with Yakov Gerschovich in Paris in Advanced Facial Sculpture Massage, and the IntraOral Massage, which features in The Intrinsic Facial Experience at The Dermal Diary.

Understanding that trust between client and therapist is one of the most crucial aspects of skin therapy. Isabella has made beautiful complexions her business, building a solid reputation in the cosmeceutical, beauty and dermatology industries, as well as the plastic surgery industry both in Australia and overseas. Her 12 years across all industries is evident in the results she provides.

Isabella has honed her passion for blending beauty and advanced dermal therapies. Holding positions such as Senior Dermal Therapist at Northern Sydney Dermatology, she worked alongside Sydney's best Dermatologists providing tailored treatment structures and delivering rejuvenation facials and Senior Dermal Therapist at Norwest Plastic and Cosmetic Surgery. Her passion is using treatments and scientifically proven skin products to treat major skin conditions like acne and rosacea. 

Amongst many, her qualifications include a Bachelor of Behavioural Health Science/Psychology, Diploma in Beauty and Dermal Science, Nutrition for Skin, and Facial Sculpture by Yakov Gershovich (Paris).

She has also designed and formulated A Private Collection of Skin Products alongside an exceptionally experienced team of compounding pharmacists that are all scientifically tested and proven to create specific results.


Manda - Skin Therapist & Facialist

Meet Manda

"I have been in the health industry for over 20 years with qualifications in naturopathy, nutrition, remedial massage and beauty and I’m passionate about all things skin! What attracted me to be a part of the The Dermal Diary team was the expert reputation that Isabella has in the industry along with the innovative and holistic approach to the successful management of skin conditions."


 Simone - Skin Therapist & Facialist

Meet Simone
 "I've always dreamt of working in the skin industry and after experiencing some severe skin burns in my 20’s, it solidified why I wanted to be involved. I was attracted to work at The Dermal Diary because of the amazing reviews from existing clientele! It showed how much trust they had put in Isabella and that it was a skin journey, no quick fixes. That’s something I wanted to be a part of, and someone I wanted to learn from.

 I love helping to change someone's self confidence and how they feel in their own skin."