Daun inai (Lawsonia inermis) bukan hanya pewarna kuku dan rambut, tetapi juga tumbuhan ubatan dengan pelbagai kesan biologi yang sudah lama digunakan dalam perubatan tradisional dan kini banyak dikaji secara saintifik. Sebahagian besar bukti masih tahap makmal dan haiwan, bukan kajian klinikal besar, tetapi gambaran umumnya cukup konsisten.
Kegunaan Tradisional & Umum
- Digunakan untuk masalah kulit dan rambut, sakit kepala, bisul, ulser, jaundis, bronkitis, sakit pinggang, dan kencing tidak lawas (Kahnamoei et al., 2019; L.B. & D.K., 2025; Moutawalli et al., 2023; Al-Snafi, 2019; Joshi et al., 2025; Makhija et al., 2011).
- Serbuk daun digunakan untuk mewarnakan rambut, janggut, kuku dan pada masa sama dianggap melindungi kulit dan kuku (L.B. & D.K., 2025; Muheyuddeen et al., 2023; Makhija et al., 2011).
Kesan Utama Daun Inai
| Kesan | Penjelasan ringkas | Sumber |
|---|---|---|
| Antimikrob | Menghalang bakteria, kulat, parasit; berguna untuk jangkitan kulit & luka | (Batiha et al., 2023; Kahnamoei et al., 2019; L.B. & D.K., 2025; Abdulfatai & Ayotunde, 2022; Semwal et al., 2014; Enoghase & Edokpolo, 2025; Batool et al., 2023; Singh et al., 2015; Kamal & Jawaid, 2011; Joshi et al., 2025) |
| Anti‑radang & analgesik | Mengurangkan keradangan dan sakit pada model haiwan | (Batiha et al., 2023; Kahnamoei et al., 2019; L.B. & D.K., 2025; Abdulfatai & Ayotunde, 2022; Sharma et al., 2016; Semwal et al., 2014; Singh et al., 2015; Kamal & Jawaid, 2011; Naseem et al., 2025) |
| Antioksidan | Melindungi sel daripada kerosakan oksidatif | (Batiha et al., 2023; Kahnamoei et al., 2019; L.B. & D.K., 2025; Abdulfatai & Ayotunde, 2022; Sharma et al., 2016; Semwal et al., 2014; Batool et al., 2023; Singh et al., 2015; Kamal & Jawaid, 2011) |
| Penyembuhan luka & lecur | Mempercepat penutupan luka, kurangkan jangkitan & keradangan | (Batiha et al., 2023; Kahnamoei et al., 2019; L.B. & D.K., 2025; Sharma et al., 2016; Semwal et al., 2014; Enoghase & Edokpolo, 2025; Batool et al., 2023; Joshi et al., 2025; Makhija et al., 2011) |
| Antidiabetik & hipolipidemik | Menurunkan gula dan lemak darah dalam kajian haiwan | (Batiha et al., 2023; Kahnamoei et al., 2019; Abdulfatai & Ayotunde, 2022; Lote et al., 2023; Sharma et al., 2016; Enoghase & Edokpolo, 2025; Singh et al., 2015; Kamal & Jawaid, 2011; Joshi et al., 2025) |
Figure 1: Kesan utama daun inai yang dikaji dalam makmal dan haiwan
Kegunaan Pada Kulit & Luka
- Daun inai kerap disapu pada gatal, ekzema, kudis, kelemumur, luka dan lecur sebagai agen antibakteria dan antifungal (Batiha et al., 2023; Kahnamoei et al., 2019; L.B. & D.K., 2025; Muheyuddeen et al., 2023; Makhija et al., 2011).
- Ekstrak daun mempercepat epitelisasi, pengecutan luka, kolagen dan kurangkan bengkak serta sel radang dalam model luka dan lecur haiwan (Semwal et al., 2014; Enoghase & Edokpolo, 2025; Batool et al., 2023; Joshi et al., 2025; Makhija et al., 2011).
- Untuk kaki diabetik dan rekahan kulit, sapuan daun inai dilaporkan membantu penyembuhan dan membentuk penghalang kelembapan yang tahan lama (Zaidi et al., 2023).
Kesan Dalaman Lain (Berdasarkan Kajian Haiwan/Lab)
- Potensi hepatoprotektif (melindungi hati), antikanser, antimalaria, antiprotozoa, immunostimulant, dan aktiviti terhadap cacing/nematod (Kahnamoei et al., 2019; Abdulfatai & Ayotunde, 2022; Lote et al., 2023; Sharma et al., 2016; Semwal et al., 2014; Moutawalli et al., 2023; Enoghase & Edokpolo, 2025; Batool et al., 2023; Singh et al., 2015; Kamal & Jawaid, 2011; Joshi et al., 2025).
- Ada laporan kesan antifertiliti (mengurangkan kesuburan) pada tikus bila ekstrak daun atau bahagian lain diberi secara dalaman, dengan kesan yang boleh menjadi kekal (Batiha et al., 2023; Zaidi et al., 2023; Batool et al., 2023; Al-Snafi, 2019).
Keselamatan & Had Pengetahuan
- Secara umum, sediaan berasaskan daun dianggap agak selamat pada dos biasa, tetapi masalah banyak dikaitkan dengan bahan campuran seperti PPD dalam “black henna” (Batiha et al., 2023; Muheyuddeen et al., 2023; Enoghase & Edokpolo, 2025).
- Masih kurang ujian klinikal pada manusia, jadi dos, cara guna dalaman, dan keselamatan jangka panjang belum mantap (Kahnamoei et al., 2019; Semwal et al., 2014; Enoghase & Edokpolo, 2025; Batool et al., 2023; Muheyuddeen et al., 2023; Kamal & Jawaid, 2011; Joshi et al., 2025).
Summary
Daun inai mempunyai pelbagai khasiat terutama sebagai antimikrob, anti‑radang, antioksidan dan penyembuh luka, selari dengan penggunaan tradisional untuk masalah kulit, rambut, dan luka. Ada juga potensi untuk penyakit dalaman seperti kencing manis dan penyakit hati, tetapi bukti kini banyak pada tahap makmal dan haiwan. Penggunaan luar (topikal) lebih disokong data dan kelihatan lebih selamat; penggunaan dalaman dan kesan terhadap kesuburan memerlukan lebih banyak kajian dan perlu digunakan dengan berhati‑hati.
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References
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