Hero Botanicals

What each ingredient
actually does.

Not marketing claims — biological mechanisms. Here's how our key actives support the hair growth cycle.

Click Origin on any ingredient card to see extraction method, geographic source & products ↗

Supports scalp circulation

Rosemary Extract

Rosmarinus officinalis

Clinically comparable to 2% minoxidil — without the side effects.

Rosemary is our anchor active — stimulating blood flow to the papilla, inhibiting DHT synthesis, and protecting follicle cells from oxidative damage. The most evidence-backed botanical for hair growth.

Biological Mechanism

Rosmarinic acid and ursolic acid inhibit 5-α reductase — the enzyme that converts testosterone into DHT. By reducing DHT at the follicle, rosemary prevents the miniaturization of hair follicles seen in androgenetic alopecia. Simultaneously, carnosic acid dilates scalp capillaries, increasing nutrient and oxygen delivery to the dermal papilla — the root command center of the hair growth cycle.

Efficacy Profile

5-α Reductase Inhibition88%

Microcirculation Boost92%

Antioxidant Activity78%

Rosemary Extract

Rosmarinus officinalis

Geographic Origin

Mediterranean Basin

Wild-harvested from the sun-drenched hillsides of Southern France, Spain, and Italy. The combination of limestone soil, sea air, and Mediterranean climate produces the highest concentration of rosmarinic acid and ursolic acid.

Found In Phase Theory Products

Rosemary Botanical ShampooRosemary Botanical ConditionerSuper Growth Hair OilBeard & Hair Growth Oil

What each ingredientactually does.

Rosemary Extract

Rosemary Extract

What each ingredient
actually does.