born in the salon.
a daily supplement designed to support hair strength, thickness and health from within.
a daily supplement designed to support hair strength, thickness and health from within.
you've tried everything. the masks, the oils, the expensive shampoos. what if the answer has always been internal?
A once-daily supplement formulated to support hair strength, thickness and scalp health at the source. Not on the surface.
A once-daily supplement formulated to support hair strength, thickness and scalp health at the source. Not on the surface.
Hair health
Hair Health
real people. real results
This is hair health support designed with intention, integrity and respect for the people it serves.
See all results
what sets synergy science apart.
This formula wasn't built in a lab by people who'd never touched hair. It was developed by a hairdresser who spent nearly four decades watching hair change and asking why.
Tess Petrie has spent nearly 40 years working one-on-one with people experiencing hair thinning, shedding and changing hair quality. The insight behind Synergy Science didn't come from trend reports or marketing briefs. It came from thousands of real conversations in the salon chair. That experience shaped every decision in this formula.
Each active in Hair Formula was selected based on scientific research for its specific role in supporting hair, scalp and follicle health. It is a considered, evidence-led formulation designed to work when dietary intake is inadequate.
Manufacturing in Australia wasn't the easiest option. It was the right one. Every batch is produced under strict quality controls that meet Australian regulatory standards, some of the highest in the world. That's our commitment to what goes into your body.
Hair grows in natural cycles. Real change takes time. Most people begin to notice a difference after 8 to 10 weeks of consistent daily use. Synergy Science is formulated for that process, not against it. If you're looking for an overnight result, this isn't it. If you're ready to support your hair properly, this is.
Most people begin to notice changes in hair strength and quality within 8 to 10 weeks of consistent daily use — aligning with the natural hair growth cycle.
A subscription makes it simple
– $79.95/month.
– $10 off every order.
– Free delivery, every time.
– Cancel anytime.
formulas.
Effective
Each ingredient has been selected based on scientific evidence to support hair strength, thickness and overall hair health, particularly when dietary intake may be inadequate.
A simple, once-daily capsule designed to work alongside your existing hair care routine, not replace it.
For 39 years, Tess Petrie has worked one-on-one with clients experiencing hair thinning and shedding. Patterns emerged through years of real conversations in the salon, not from trends or theories.
Synergy Science was created to support hair health where it actually begins, within the body.
Clinical Trial Participant
Around the 8-week mark, I noticed the shedding slowing down, and then I could actually see new growth starting to come through.Now I am starting to get that coverage back around my hairline.My hair feels stronger, and I feel a lot more like myself again.
Clinical Trial Participant
Around week 8 is when I really started to notice it. My hair felt lighter, it had more lift at the roots, and it just looked better overall. There's more shine, and it honestly feels thicker as well.
Clinical Trial Participant
Within about six weeks, I started to feel changes just by running my hands through my hair. It felt stronger, fuller, and more supported from the root. Even my scalp felt healthier, which I didn't expect but definitely noticed.
Clinical Trial Participant
After starting Synergy Science, I noticed a difference quite early. My hair began feel stronger, and over time I could see and feel more thickness coming back through my lengths.
Clinical Trial Participant
Since using Synergy Science, I have noticed a big change. My scalp feels a lot more balanced, and I don't feel like I'm constantly dealing with oil and buildup anymore. It just feels easier.
