Define — Clinically Backed. Properly Dosed. No Nonsense.
Konjac + Green Tea + Caffeine + Chromium. Four ingredients. Four reasons it works.
Calorie restriction is hard. The hunger, the cravings, the energy dips, the difficulty staying focused — most fat loss supplements ignore these problems and just add more stimulants. Define doesn't.
Each dose addresses every mechanism that makes weight management difficult. Konjac Glucomannan — one of the only ingredients with an EU-approved health claim for weight loss — promotes satiety. Green Tea supports metabolism. Chromium manages blood sugar to reduce cravings. Caffeine provides focus when calories are restricted.
Four clinically recognised ingredients. Dosed to work. Designed for women who take results seriously.
This is weight management support that respects your intelligence.
Best for
Women on a calorie-controlled programme
Those struggling with hunger or cravings
Anyone wanting natural metabolic support
Women combining diet with regular training
Why it works
Konjac Glucomannan (1,000mg) EU-approved health claim: contributes to weight loss in the context of an energy-restricted diet.
Green Tea Extract (500mg) Supports natural fat oxidation and metabolic rate through polyphenol content.
Caffeine (100mg) Supports energy, focus and thermogenesis during periods of calorie restriction.
Chromium (200mcg — 500% NRV) Contributes to normal macronutrient metabolism and maintenance of normal blood glucose levels.
What makes it different
Konjac at the EU-approved clinically effective dose
Chromium at 500% NRV — not a token inclusion
Addresses hunger, metabolism, blood sugar and focus in one formula
Clean, considered formula — no aggressive stimulant stack
60 capsules — 30 doses
How to Use
Take 2 capsules before each main meal with a large glass of water. Do not exceed 6 capsules per day. Contains caffeine. Not suitable during pregnancy.
Since 1997 Bio-Synergy has been setting standards in sports nutrition. Certified B Corporation®. Made in the UK. Independently tested. Used by elite and professional athletes for over 25 years.
For optimal results, take two Active Woman® Define capsules per day, before a meal with a glass of water. Most customers report noticing results within one month. We advise users not to consume Active Woman® Define before sleep due to it containing a source of caffeine.
Fight your cravings and burn fat faster
Designed specifically for women who want to lose weight without starving themselves, Active Woman® Define is a blend of research-supported weight loss ingredients that boost your metabolism and curb your junk food cravings, so you don’t ruin your diet. Controlling your weight doesn’t need to be complicated. Define combines three highly effective ingredients to give your weight loss goals the boost they need. With 500mg green tea extract and 100mg caffeine, your metabolism gets a mighty kick to speed up your fat burning potential. We’ve also added konjac mannan (glucomannan), which is a dietary fibre that swells in your stomach to give you the feeling of being full, and so you have fewer hunger pangs throughout the day. Lastly, there’s chromium, which is known to curb cravings and keep your sweet tooth under control. So, whether you want to lose weight for your sport or you’re getting beach-ready, you’ll find the journey easier with Active Woman® Define.
Did you know?
Define is one of seven supplements within the Active Woman® sports nutrition range. If you’re trying to get a toned and fabulously feminine physique, you’ll find a choice of supplements that can propel you towards your goals.
Is Active Woman® Define right for you?
If you exercise regularly, follow a calorie-controlled diet and want an added weight loss boost, then yes it is. Define is designed to help you reach your weight loss goals faster than you would with diet and exercise alone.
Looking for other performance products for women?
You’ll find a wide range of options from Active Woman® and Bio-Synergy, including Active Woman® Activate, Refine, Revitalise and Refuel, as well as Body Perfect, Lean & Green Vegan Protein, Skinny Protein and Skinny Water.
Superior manufacturing for superior results
We’ve sourced the finest quality nutrients from the UK to achieve a premium quality content that is hard to match. As with all products made by Bio-Synergy, the Active Woman range is produced in our own facilities right here in the UK, so you know you’re getting the finest quality supplements.
How to take Define
For optimal results, take two Active Woman® Define capsules per day, before a meal with a glass of water. Most customers report noticing results within one month. We advise users not to consume Active Woman® Define before sleep due to it containing a source of caffeine.
Are you a science geek?
If you love the science behind why we do what we do – and our website isn’t technical enough for you – you’re in luck. Have a look at this research study https://pmc.ncbi.nlm.nih.gov/articles/PMC3892933/
INGREDIENTS
Konjac glucomannan, HPMC (Capsule), Green Tea Extract, Caffeine, Chromium Chloride.
CONTENTS
NUTRITIONALS
Nutritional Information:
Per Dose (2 Caps):
% NRV:
Konjac glucomannan
1,000mg
-
Green Tea
500mg
-
Polyphenols
50mg
-
Caffeine
100mg
-
Chromium
200mcg
500%
NRV = Nutrient Reference Value
SUITABILITY
Not suitable for children or pregnant women. Food supplements should not be used as a substitute for a healthy lifestyle and balanced diet. If in doubt of the suitability of this product, consult your GP. Do not exceed the recommended daily dose.
Store sealed in a cool dry place out of direct sunlight and the reach of children.
THIS PRODUCT IS SUITABLE FOR VEGANS
TESTIMONIALS
“I have been taking these while following weight watchers, drinking a protein shake for breakfast and working out for two weeks and have lost 8lb. Never had that kind of weight loss before so fast. What I like is the impact on my energy levels, I’m finding easy to get to the gym in the evenings once the kids are in bed and my workouts are better for it.”
Established 1997
made in the UK
Certified B Corp®
Independently Tested
Used by Elite Athletes
Proof in performance
Trusted by high performers. Proven at every level.
Complete Your Stack
Frequently bought together for better results.
HAVE A QUESTION? WE'RE HERE TO HELP.
Customer support is available Monday to Friday 9am - 5pm. Average Answer time: 24 hours
Absolutely. All our supplements undergo rigorous testing for safety and efficacy. We adhere to the highest standards to ensure our products are free from banned substances, making them safe for athletes at all levels.
How do I know which Bio-Synergy supplement is right for me?
Our product range is designed to cater to various fitness goals, whether it's building muscle, losing weight, or enhancing endurance. For a more personalised approach we recommend a Bio-Synergy DNA test to identify the best supplement for you.
Can I take Bio-Synergy supplements with other medications?
While our supplements are safe, we recommend consulting with your doctor before starting any new supplement regimen, especially if you are currently taking other medications.
How should I store my Bio-Synergy supplements?
Keep your supplements in a cool, dry place away from direct sunlight. Make sure the cap is tightly sealed after each use to maintain their potency and freshness.
What is the return policy for Bio-Synergy supplements?
We stand behind the quality of our products. If you are not satisfied with your purchase, you can return it within 30 days for a full refund. Please visit our return policy page for detailed information.
Do Bio-Synergy supplements have any side effects?
Bio-Synergy supplements are designed to be safe and effective when used as directed. However, as with any supplement, some people may experience side effects. If you experience any adverse effects, stop use immediately and consult a healthcare professional.
How long does it take to see results from Bio-Synergy supplements?
Results can vary based on individual factors like diet, exercise, and overall health. Some may notice benefits immediately, while for others, it might take longer. Consistency and a healthy lifestyle are key to achieving the best results.
Are there any discounts available for buying Bio-Synergy supplements?
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How long does delivery take?
Delivery is next day in the UK Monday-Thursday and 48-72 hrs at weekends. For international delivery, times will vary but generally within 7 working days