Alex Pike revealed the non-surgical secrets behind her incredible physical transformation earlier this month. And the girlfriend of AFL great Nathan Buckley drew attention to her weight loss on Monday by sharing a before-and-after post on Instagram. The 'before' picture showed the mother of three, 44, sporting a fuller figure in 2017. Phenomenal transformation: On Monday night, Alex Pike opted to show off more pictures of her impressive progress with fans, sharing a side-by-side picture of herself in 2017 versus this year The 'after' image showed her looking significantly more toned in the present day. The two pictures also highlighted subtle changes to Alex's features, as her face now appears more refined thanks to judicious use of filler . It comes after the cosmetic nurse revealed the secrets behind her youthful complexion and incredible figure. Her secret is out! It comes after the cosmetic nurse revealed the secrets behind her youthful complexion and incredible figure in an interview with the Herald Sun on November 14 'Going through all of the challenges in my life, while balancing being a mum to three boys and being an entrepreneur, I’ve learnt the importance of self-care and self-love to stay grounded,' she told the Herald Sun on November 14. 'I’ve created daily routines and practices that make me feel amazing mentally, physically and emotionally. Some of these include meditation, walking, cold therapy, gratitude journaling and sticking to a healthy diet plan,’ she added. 'By implementing all of these activities into my life, my energy has shifted and I’m glowing from the inside out.' Alex's comments came after she shared photos of herself taken in April, 2019, which showed her with a fuller face and figure compared to her current toned appearance. The photos were taken right before she embarked on the viral #75HARD Challenge. Before and after: In June, Alex unveiled her stunning fitness transformation by sharing a photo from 2019 (left) alongside a recent image (right) to document her changes over the years The extremely strict health and fitness challenge is described as a 'mental toughness test' which pushes participants through 75 days of rigid diet and rigorous exercise. It involves twice daily workouts, calorie counting, a clean diet with no cheat meals, reading non-fiction books every day and much more. Even before embarking on #75HARD, Alex followed a very clean and restrictive diet to stay in shape. In 2016, she wrote on her website that she doesn't eat any sugars, breads or pasta and prefers resistance training and body building to aerobics exercises. 'After having three children I am in the best shape of my life. I owe this to Isagenix shakes twice a day a dinner of lean protein and green based vegetables,' she wrote. Turning back the clock: The 44-year-old is a fan of Cosmelan treatments, which reduces the dark spots caused by melanin, hyperpigmentation and ageing She's full of it! Three years ago, Alex shared a before and after post that showed her in 2011 when she was more natural, and 2018 after dabbling with injectables Besides diet and exercise, Alex has also used cosmetic tweaks to enhance her appearance. She's a fan of Cosmelan treatments, which reduces the dark spots caused by melanin, hyperpigmentation and ageing. Three years ago, Alex shared a before and after post that showed her in 2011 when she was more natural, and 2018 after dabbling with injectables. 'The power of anti-wrinkle injections, lasers and some fillers and not forgetting the importance of an excellent Cosmeceuticals range,' she captioned it. Fit! Alex is a fan of of the #75HARD challenge, which involves twice daily workouts, calorie counting, a clean diet, reading non-fiction books every day and much more She added the hashtags: '#antiwrinkleinjections #fillers #dermalfillers #laser #skinboosters #chinfillers #fractionallaser #pigmentation #volumereplacement #ageinginreverse #getbettereveryday.' Although Alex doesn't appear a day over 25, the WAG revealed on a podcast in March that she's actually 'close to 44'. 'I've never been more empowered in my life and I'm close to 44,' she said on the Curious Conversations podcast. 'I used to hide my age and be very ashamed because there's such a stigma for women.' Dedicated: In 2016, she wrote on her website that she doesn't eat any sugars, breads or pasta and prefers resistance training and body building to aerobics exercises THE RULES OF THE #75HARD CHALLENGE 1. Follow a strict diet - no cheat meals for the entire 75 days. Calorie counting is not essential but the diet must eliminate chocolate, cake, soft drinks and alcohol. 2. Workout twice a day for at least 45 minutes, with one outdoor session. 3. Drink four litres of water per day. 4. Read 10 pages of a non-fiction entrepreneurial book each day. 5. Take progress photos every day. Source: Medium.com Advertisement Alex added: 'I hate when people say, "You're really hot for a mum." It's like, really? Do I have to be attractive for a mum? Can't I just be attractive? 'I don't want to be good for my age. I want to be good.' The former model said she's had a little help with maintaining her remarkably youthful visage. Alex first dabbled with anti-wrinkle injections at the age of 23 after a surgeon urged her to try Botox. 'I ended up having the treatment - just my frown line,' she admitted. Ageless: Although Alex doesn't appear a day over 25, the WAG revealed on a podcast in March that she's actually 'close to 44' 'And when it started to take effect, I could not believe the difference and I then started getting more modelling [jobs] because I was looking super fresh.' She also drinks four litres of water a day, downing three litres while she's working at her clinic and then another litre at home in the evening. The brunette beauty is currently in a relationship with AFL coach Nathan Buckley. Claim to fame: The brunette beauty is currently in a relationship with AFL coach Nathan Buckley All rights reserved for this news site (dailymail) and under his responsibility