乙醇，俗称酒精
这是因为，目前多数头皮精华液的作用部位主要是发根，发根处于真皮至皮下组织，活性物一般较难抵达此位置，而乙醇能进一步促进其透皮吸收。
但乙醇对头皮有损伤、结痂、头痒头屑多的人群并不友好，建议谨慎使用。
总体来说，如果对自己的脱发情况非常担忧，防脱头皮精华可以一试，但效果可能因人、产品而异。
顺便，技术员小姐姐想征集一下：大家对哪些品牌的防脱头皮精华感兴趣？评论区留言，顺便可以蹲一蹲下次的评测哦~
最后，不管怎么说，多一份健康的作息、饮食、生活习惯，少一份月亮不睡我不睡的危险想法，能带来的益处更多！
[1]B Erdoğan. Anatomy and Physiology of Hair[M]. 2017.
[2]脱发·护发·植发 李兴东2019
[3]2021年90后脱发调研报告（mob研究院）
[4]Hair restoration surgery: challenges and solutions,2015
[5]Efficacy and Safety of a New Topical Hair Loss-Lotion Containing Oleanolic Acid, Apigenin, Biotinyl Tripeptide-1, Diaminopyrimidine Oxide, Adenosine, Biotin and Ginkgo biloba in Patients with Androgenetic
Alopecia and Telogen effluvium: A Six-month Open-Label Prospective Clinical Study,2018
[6]Therapeutic importance of sulfated polysaccharides
from seaweeds: updating the recent fifindings,2012
[7]Adenosine stimulates growth of dermal papilla and lengthens the anagen phase by increasing the cysteine level via fibroblast growth factors 2 and 7 in an organ culture of mouse vibrissae hair follicles,2012
[8]Hair growth-promoting activity of hot water extract of Thuja orientalis,2013
[9]Evaluation of the Effect of Plant Mixture Ethanol Extracts Containing Biota orientalis L. Extract on Suppression of Sebum in Cultured Sebocytes and on Stimulation of Growth of Keratinocytes Co-cultured with Hair Papilla Cells,2017
[10]Comparison of the efficacy of topical minoxidil 5% and adenosine 0.75% solutions on male androgenetic alopecia and measuring patient satisfaction rate,2013
[11]The Effect of a Food Supplement and a Hair Lotion on the Progression of Androgenetic Alopecia,2019
[12]骨碎补外用对环磷酰胺致小鼠斑秃模型的影响,2012.
,
