New! 

Feel the light tingle of peppermint with this organic scalp treatment oil as it works to stimulate your scalp and increase blood flow, bringing nourishment to your hair follicles to foster hair growth and health. Made also with rosemary and red clover extracts in a blend of jojoba and castor oils for a hefty dose of nutrients. 

Massage several drops onto your scalp and let sit for a couple of hours to overnight, then shampoo per usual. Use weekly, or as preferred. 

Ingredients: Jojoba oil, castor oil, rosemary extract, red clover extract, peppermint extract. All organic ingredients. Preserved with vitamin E. 

Comes in a 1 fl oz/30ml glass dropper bottle. 

Ingredient-by-ingredient, evidence-based mechanisms

Jojoba oil — scalp conditioning & follicle-clearing
Jojoba is chemically a liquid wax very similar to human sebum. It can help dissolve sebum build-up, hydrate the scalp, protect the hair shaft, and reduce flaking/irritation. By normalizing scalp oil and improving barrier function, jojoba helps create a healthier environment for hair follicles (this supports normal hair cycling and reduces breakage). The primary evidence is from pharmacological and cosmetic reviews rather than large clinical hair-growth trials. 

Castor oil — occlusive humectant that reduces breakage
Castor oil is rich in ricinoleic acid and long-chain fatty acids. It acts as an occlusive humectant (locks moisture into hair shafts and the scalp), and has mild anti-inflammatory and antimicrobial effects reported in reviews. Those properties can reduce brittleness and breakage and soothe mildly irritated scalps — indirectly helping hair appear fuller and reducing loss from breakage. However, there is little high-quality evidence that castor oil directly stimulates new hair follicle growth in humans. 

Rosemary oil — improved microcirculation, antioxidant and anti-androgenic effects (clinical evidence)
A randomized clinical trial found topical rosemary oil produced improvements in androgenetic alopecia comparable to 2% minoxidil over 6 months (fewer side effects were reported). Proposed mechanisms include improved microcapillary blood flow to follicles, antioxidant and anti-inflammatory activity, and possible anti-androgen effects from rosemary constituents — all of which can help prolong anagen (growth) phase and increase hair density. This is one of the stronger clinical signals among plant oils. 

Peppermint oil / peppermint extract — vasodilation and follicle stimulation (preclinical evidence)
Topical peppermint oil (menthol-containing) produced marked increases in hair growth metrics in a well-cited mouse study (increased dermal thickness, follicle number, and hair growth) — effects thought to be mediated by local vasodilation, increased blood flow, and perhaps stimulation of follicle activity. Human data are more limited, but these preclinical results suggest a plausible mechanism by which small amounts of peppermint oil could enhance scalp perfusion and follicle stimulation. 

Red clover extract — isoflavones / phytoestrogen effects and scalp health (limited human data)
Red clover contains isoflavones (plant estrogens) that can influence skin and hair appendages. Some human studies and reviews found subjective improvements in scalp hair and skin after oral red clover isoflavone supplementation; topical data are more limited. The proposed actions are modulation of local hormonal signaling and antioxidant effects, which could be helpful in certain types of hair thinning.

Here are the references for the scientific claims made in the hair growth and scalp health explanation — with direct links to PubMed or PMC where possible:

1. Rosemary oil vs minoxidil (human trial)
   Panahi Y, Taghizadeh M, Marzony ET, Sahebkar A.
   “Rosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia: a randomized comparative trial.”
   PubMed: https://pubmed.ncbi.nlm.nih.gov/25842469/

2. Jojoba oil properties — scalp conditioning & sebum similarity
   General review on jojoba oil composition and applications:
   PMC open access article:
   https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8197201/

3. Castor oil properties — humectant, anti-inflammatory, antimicrobial (cosmetic context)
   Review article summarizing biological effects of castor oil and ricinoleic acid:
   PMC open access article:
   https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9231528/

4. Peppermint oil and hair growth — preclinical (mouse) study
   Oh JH, et al.
   Peppermint oil promotes hair growth in mice via dermal papilla stimulation.
   PMC open access article:
   https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4289931/

5. Red clover isoflavones — skin and hormone-related actions
   Review discussing isoflavone effects on skin and potential relevance to appendages like hair:
   PMC open access article:
   https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3206499/