Ingredient 1
Biotin (Vitamin B7)
Supports keratin structure*
Biotin is a water-soluble B vitamin that plays a role in keratin production, the
structural protein that makes up hair and nails.[1,2] Reports show that
people with documented biotin deficiency can experience hair problems that improve
with biotin supplementation.[1,2]
While deficiency is considered uncommon, biotin is frequently included in cosmetic
hair formulas to help support overall hair quality as part of a daily routine.[1,2]
Ingredient 2
Castor Oil
Helps lock in moisture*
Castor oil is rich in ricinoleic acid, a monounsaturated fatty acid known for its
moisturizing and occlusive properties.[3,4] It helps lock in hydration on the
scalp and hair surface, which may reduce dryness, friction and visible breakage.[3,4]
Experts note that castor oil can support a healthier-looking scalp and make hair
appear shinier and more conditioned, even though direct evidence for hair regrowth
is limited.[3,4]
Ingredient 3
Aminexil
Developed for follicle anchorage*
Aminexil (2,4-diamino-pyrimidine-3-oxide) is a molecule used in anti-hair-loss
cosmetic lotions, often combined with other ingredients such as minoxidil or
piroctone olamine.[5–7]
In clinical and preclinical work, aminexil-containing formulas have been investigated
for their ability to help reduce hair shedding and support hair follicle anchorage in
people with mild to moderate hair thinning, although effects are generally modest and
vary between individuals.[5–7]
Ingredient 4
Caffeine
Topical follicle support*
In laboratory models, topical caffeine has been shown to stimulate human hair
follicles, support hair shaft elongation and help counteract testosterone-related
growth suppression when applied directly to the follicle in vitro.[8,9]
These in vitro and cosmetic studies suggest that caffeine may help support the
hair growth (anagen) phase when included in topical scalp-care formulas.[8,9]
Ingredient 5
He Shou Wu (Polygonum multiflorum)
Traditional herb for hair*
He Shou Wu (Fo-Ti, Polygonum multiflorum) is a traditional Chinese herb that has
been studied for its potential to support hair growth and pigmentation in
experimental models and human subjects.[10–12]
Research on Polygonum multiflorum extract suggests it may help promote the anagen
(growth) phase of hair follicles and support scalp microcirculation, although
more high-quality human data are still needed.[10–12]
The presence of these ingredients in HaloGrow™ does not mean the product has been
clinically tested to treat hair loss. The references show how similar ingredients
have been studied in various cosmetic or nutritional contexts. HaloGrow™ is marketed
as a cosmetic hair and scalp spray only.
