Define by Jill
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Registered Cosmetic Nurse and owner of Define by Jill. She is clinically guided and focused on natural facial harmony.
With 17 years’ experience in cosmetic Nursing, I specialise in natural-looking aesthetic treatments that help clients look refreshed and feel confident. Define by Jill is owned by Jill McIver, a registered nurse (RN NMW0001003228) and talented aesthetician with over a decade of experience. Passionate about helping people look as youthful as they feel, Jill has performed more than 20,000 treatments across Australia, earning a reputation for her keen aesthetic eye and patient-centered approach. Define By Jill prides themselves on delivering outstanding non-surgical cosmetic services in the Hawkesbury. We build genuine relationships with our patients by living our core values of trust, passion, pride, and honesty. From our clinic, come sanctuary in Windsor, Jill and her dedicated team provide unique, thoughtful, and unwavering service. We aim to offer the best advice on aesthetic treatment options based on your individual needs and outcomes — all guided by comprehensive assessment with a qualified practitioner. We are always available to answer any of your questions or concerns
Learn more about on our website or book a consultation at definebyjill.com today. Alternatively, DM us via Facebook Messenger now.
22/09/2026
Consider this your invitation to slow down, switch off and invest in yourself.
20/09/2026
Happy birthday to the heart behind Define by Jill.
Jill, we hope you know how loved and appreciated you are, not just today, but every day.
We’re so lucky to work alongside you and to see the care, passion and love you put into everything you do. You’ve created something so special, and it’s a reflection of the person you are.
Thank you for always caring so deeply, for sharing your knowledge so generously and for making everyone around you feel so welcome.
We hope today is filled with all the love you give to everyone else.
Happy birthday, Jill. We love you.
20/09/2026
The festive season is approaching, and appointments are beginning to fill.
We recommend securing your preferred day and time early to ensure you don’t miss out.
Book online through our website: definebyjill.com
If your preferred appointment isn’t showing online, please call the clinic. We’ll always do our best to accommodate you where possible.
17/09/2026
Self care is waiting.
A little time set aside to slow down, reset and pour back into yourself.
Your skin deserves the same care you give everything else. Consider this your invitation to make time for you.
Book through our website or link in bio.
15/09/2026
A little reminder to pause, reset and make space for yourself. Time set aside to restore, reconnect and simply feel your best.
14/09/2026
Skin health, thoughtfully prescribed.
Our Dermaviduals packs are carefully selected to support your skin’s individual needs.
Dermaviduals is a science backed, biomimetic skincare system designed to work in harmony with the skin, supporting the skin barrier with skin-identical lipids and carefully selected ingredients.
Professional knowledge. Evidence led skincare. Personalised to your skin.
Available in clinic.
11/09/2026
The festive season is approaching, and our appointment diary is filling quickly.
If you have appointments you’d like to secure before Christmas, we recommend booking ahead to give yourself the best chance of securing your preferred date and time.
Our online booking system is available 24/7 for easy appointment scheduling.
Can’t find the appointment time you’re looking for? Please call the clinic. Our team will always do our best to accommodate you where possible.
We look forward to seeing you in clinic over the festive season.
11/09/2026
There’s something special about the little moments at Define by Jill.
The conversations, the care, the trust and the time taken to make every visit feel personal.
More than skin. More than treatments. A space where you can slow down, feel cared for and leave feeling like the best version of yourself.
We’re so grateful for every person who chooses to spend a little part of their day with us.
10/09/2026
It is never too early to begin your Christmas shopping. For those moments when you want to give something truly special, our gift cards and curated skincare packs offer a luxurious way to indulge someone you love.
Our gift cards can be customised to your preferred amount, giving them the freedom to choose the treatment that feels right for them.
For something more tangible, our carefully selected skincare packs make an elegant addition to any Christmas wish list, with beautiful formulations chosen to support and nurture the skin.
Available in clinic.
Staying current. Staying prepared.
Our team completing our First Aid & CPR training to ensure our clinical knowledge, emergency response protocols and safety standards remain up to date.
At Define by Jill, exceptional care extends beyond the treatment room. Your safety is always our priority.
Thank you to First Aid Coach Sydney RTO 46588 for keeping our team informed, confident and prepared.
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Shop 1, 34-36 Macquarie Street
Windsor, NSW
2756