The complete hair growth guide: nourish from within & treat from without
Share
Most hair growth advice focuses on products. The right shampoo. The right oil. The right supplement. But the science of hair growth is clear on one point: neither internal nor external treatment alone is enough. The follicle is a living structure that responds to both what you put on it and what you put in your body — and only when both are addressed does real, sustained regrowth happen.
This is the complete picture — what your follicles actually need, from both directions.
Key takeaways
- → Hair is 90% keratin — a protein that requires consistent micronutrient supply to be produced
- → Deficiency in iron, zinc, vitamin D, or protein will stall regrowth regardless of what you apply topically
- → Scalp massage alone increases blood flow to follicles by up to 60% — the most underrated tool in hair growth
- → The cause of your hair loss determines which oil will work — one formula doesn't fit all
Nourish from within — the six nutrients your follicles need
Your hair grows from inside out. The follicle — a tiny organ in your scalp — produces a new hair strand by dividing cells at a rapid rate. That process is energy-intensive and nutrient-dependent. When any key nutrient falls short, the body quietly deprioritises hair growth in favour of more essential functions. The result: thinning, shedding, and slow growth that no external product can fully compensate for.
These are the six that matter most — and exactly what they do:
01
Protein
Hair is 90% keratin — a structural protein. Without adequate protein intake, the body halts hair production to redirect amino acids to vital organs. Aim for at least 50g daily.
Eggs · chicken · lentils · Greek yoghurt
02
Iron (ferritin)
Low ferritin is the single most common — and most overlooked — nutritional cause of hair loss in women. Iron carries oxygen to the follicle; without it, the growth phase shortens dramatically.
Spinach · red meat · lentils · pumpkin seeds
03
Zinc
Essential for protein synthesis and cell division — both fundamental to hair strand production. Zinc also inhibits 5-alpha reductase, the enzyme that converts testosterone into DHT (the hormone that shrinks follicles).
Shellfish · nuts · seeds · legumes
04
Vitamin D
Follicle cells have vitamin D receptors — without adequate D, they cannot complete the growth cycle correctly. Vitamin D deficiency is directly linked to telogen effluvium and is extremely common, especially in northern climates.
Sunlight · salmon · fortified foods · supplementation
05
Biotin (B7)
Biotin is directly involved in keratin production. While true biotin deficiency is rare, it's commonly depleted by chronic stress, birth control pills, and poor gut health — making supplementation worthwhile in these cases.
Eggs · almonds · sweet potato · salmon
06
Magnesium
Magnesium prevents calcium buildup on the scalp, which can block follicle openings and restrict growth. It also supports protein synthesis and is rapidly depleted by stress — making it doubly important when hair loss has a stress component.
Dark chocolate · avocado · cashews · leafy greens
Worth testing: Before buying supplements, ask your GP for a blood panel covering ferritin, vitamin D, zinc, and TSH (thyroid). These four deficiencies together account for the majority of nutritional hair loss in women — and guessing without testing often leads to supplementing the wrong things.
"Internal deficiency will stall regrowth regardless of what you apply topically. External treatment will underperform if the follicle isn't being fed from within. Both pillars are non-negotiable."
— The MO'MANE approach
Treat from without — your external ritual
1. Target the cause with the right scalp oil
A scalp oil does more than moisturise. Applied directly to the scalp and massaged in, the right oil delivers active ingredients — anti-inflammatory compounds, circulation boosters, DHT inhibitors, antioxidants — precisely where the follicle needs them. But the key word is right. The cause of your hair loss determines which ingredients you actually need.
The MO'MANE oil range — cause by cause
Hormonal hair loss
Harmony Bloom
For postpartum, menopause, birth control changes, and PCOS. Evening primrose, castor, lavender, and Persian saffron rebalance the scalp environment disrupted by hormonal shifts.
Shop Harmony Bloom →Stress & burnout hair loss
Solace Elixir
For telogen effluvium, burnout, and stress-triggered shedding. Nine ingredients — saffron, rosemary, chamomile, lavender, ylang ylang and more — calm inflammation and reactivate dormant follicles.
Shop Solace Elixir →Genetic & DHT hair loss
Crown Lumina
For androgenetic alopecia and DHT-driven miniaturisation. Saw palmetto inhibits DHT at the receptor level, while peppermint reactivates blood flow to shrinking follicles.
Shop Crown Lumina →Not sure which applies to you?
Take the 2-minute hair quiz — get a personalised recommendation.
Start the quiz →How to apply any scalp oil
Step 1
Apply 6–8 drops directly to sections of the scalp. Part the hair to ensure contact with the skin — not just the strands.
Step 2
Use the Scalp Brush to massage in circular motions for 5 minutes. This step increases blood flow to the follicle by up to 60% and dramatically improves absorption.
Step 3
Leave on for a minimum of 30 minutes, or overnight for deeper penetration. Rinse thoroughly and shampoo as normal. Repeat 2–3 times per week.
2. Scalp massage — the most underrated tool in hair growth
A 2019 study published in Dermatology and Therapy found that standardised scalp massage — just 4 minutes daily — produced measurable increases in hair thickness and density after 24 weeks. The mechanism: mechanical stretching of follicle cells during massage activates genes involved in hair growth, while increased blood flow delivers more oxygen and nutrients to the follicle.
The Scalp Brush Elite+ amplifies this effect — its flexible silicone bristles reach deeper into the scalp than fingertips, provide even pressure distribution, and work whether applied on dry hair or during oil treatment. 5 minutes during each oil session is all it takes.
3. Protect what's growing
New growth is fragile. Baby hairs and early regrowth can be broken before they establish — undoing weeks of treatment. Three small changes protect the progress you're building:
◎
Cotton creates up to 3× more friction overnight than silk — breaking fragile new growth before it can establish. Silk also preserves moisture in both your hair and the scalp oil you applied the night before.
◌
Elastic ties create tension at the shaft and leave crease marks that weaken fragile new strands. Silk scrunchies hold without pulling and leave no mark — an easy swap with a real impact.
✦
Reduce heat & tension
Recovering follicles cannot grow faster than the damage being added. Reduce heat styling frequency, avoid tight hairstyles, and switch to a wide-tooth comb — start from the ends, work upward. Mechanical damage is the most preventable cause of setbacks during regrowth.
Putting it all together — what to do each week
Consistency over intensity — always. A simple routine done regularly outperforms an elaborate one done sporadically. Here's what a realistic weekly protocol looks like:
| Frequency | Action | Why it matters |
|---|---|---|
| 2–3× per week | Scalp oil + 5-minute massage with the Scalp Brush | Delivers active ingredients directly to the follicle; massage multiplies blood flow by up to 60% |
| Daily | Protein-rich meals · stay hydrated · silk pillowcase at night | Provides the continuous internal environment hair production depends on; protects new growth overnight |
| Weekly | Gentle detangling · reduce heat sessions · loose hairstyles | Prevents mechanical breakage of fragile new strands before they can establish |
| Every 3 months | Reassess: less shedding? New growth visible? Adjust routine | Hair cycles take 3–6 months — progress is real but slow; tracking keeps you consistent |
The single most important factor in any hair growth protocol is consistency over time. Hair grows in cycles. What you do today becomes visible in 10–12 weeks. Start now, stay consistent, and reassess at 90 days.
Frequently asked questions
How long does it take to see hair growth results?
Hair grows approximately 1–1.5cm per month and cycles over 3–6 months. With a consistent internal and external routine, most women notice reduced shedding within 2–4 weeks, stronger existing strands within 6–8 weeks, and visible new growth at 10–12 weeks. Full density restoration after significant shedding typically takes 3–6 months of consistent treatment.
Which nutrient deficiency causes the most hair loss?
Iron (measured as ferritin, the stored form) is the single most common nutritional cause of hair loss in women and the most frequently missed on standard blood tests. Vitamin D is a close second. Ask your GP specifically for ferritin and 25-OH vitamin D — these are not always included in a standard panel unless requested.
Does scalp massage really help hair grow?
Yes — and it's one of the best-evidenced, lowest-cost interventions for hair growth. A 2019 standardised study found 4 minutes of daily scalp massage produced significant increases in hair thickness over 24 weeks. Massage works by increasing scalp microcirculation, mechanically stretching follicle cells (which activates growth genes), and improving absorption of any topical treatment applied beforehand.
How do I know which hair oil is right for me?
The oil that works for you depends on the cause of your hair loss — and most people have more than one contributing factor. Take the 2-minute hair quiz to get a personalised recommendation based on your specific pattern. If your hair loss has multiple causes, the Complete System Trio covers all three simultaneously.
Is it better to oil hair overnight or just for 30 minutes?
Overnight application allows deeper penetration of active ingredients into the scalp and hair shaft — particularly beneficial for oils containing lauric acid (coconut) or ricinoleic acid (castor), which penetrate the hair shaft rather than sitting on the surface. A minimum of 30 minutes is effective; overnight is optimal when your schedule allows. Use a silk pillowcase to preserve the oil and protect new growth while you sleep.