Androgenetic Alopecia (AGA)
(Male & Female Pattern Hair Loss)
Commonly known as Male or Female Pattern Hair Loss, this form of hair thinning is progressive and hereditary. It typically follows a recognizable pattern and is influenced by hormones and genetics.
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This common condition affects millions of men and women. Here's what you need to know about its causes, symptoms, and treatment options.
What Is It Androgenetic Alopecia (AGA)?
Androgenetic Alopecia (AGA), also known as male or female pattern hair loss, is the most common form of progressive hair thinning. It is primarily driven by genetic predisposition and hormonal activity—specifically the sensitivity of hair follicles to androgens such as dihydrotestosterone (DHT).
In men, AGA often starts with a receding hairline and thinning at the crown. In women, it presents as diffuse thinning across the top of the scalp while typically maintaining the frontal hairline. While not medically dangerous, AGA can have a profound impact on confidence and self-image.
Common Causes & Contributing Factors
Genetics – Family history increases the likelihood of inherited follicle sensitivity to DHT
Hormonal changes – Elevated or imbalanced androgens such as testosterone and DHT
Aging – Hair density and strength naturally decrease with age
PCOS in women – Polycystic ovary syndrome often elevates androgen levels
Poor circulation & inflammation – Can accelerate miniaturization of hair follicles
Stress – May exacerbate progression in those already predisposed
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How It’s Diagnosed
A certified trichologist or medical professional typically begins with a detailed consultation and health timeline.
Diagnosis includes:
Scalp examination under magnification
Functional blood chemistry analysis to assess hormones, nutrients, and inflammation
Symptoms to Watch For
Gradual thinning on the crown or temples (men)
Widening part or diffuse thinning on top of the scalp (women)
Miniaturized, finer hairs in affected areas
Scalp more visible in bright lighting
No significant itching or inflammation (unlike other conditions)
Treatment & Management Options
Lifestyle Recommendations
Reduce intake of high-glycemic foods and processed oils
Improve sleep and stress management (yoga, adaptogens, breathwork)
Consider tracking androgens with a qualified practitioner
Topical / Clinical Treatments
DHT blockers (saw palmetto, pumpkin seed oil, green tea extract)
Microneedling or PRP (platelet-rich plasma) to stimulate follicle activity
Minoxidil-based or herbal serums targeting miniaturized follicles
Scalp Therapies & Supplements
Ph-balancing scalp detox (e.g., Iridium Green Shampoo)
Cell Food Drops for circulation and scalp nourishment
Functional supplements: zinc, biotin, vitamin D3, omega-3s
Low-level laser therapy (LLLT) or red light stimulation
Not ready to book a session just yet?
That’s okay—your curiosity still matters! If you have a question about hair or scalp health but aren’t ready to move forward with a consultation, feel free to send it our way. We may feature it in an upcoming blog post or use it as a topic in a future live session—because chances are, someone else is wondering the same thing too.
Androgenetic Alopecia Blog
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Nutritional Hair Loss FAQ
Can a lack of nutrients really cause hair loss?
Yes — and it’s more common than most people think. Your hair isn’t essential for survival, so when your body senses a nutrient deficit, it diverts resources elsewhere. Hair is often the first thing to show there’s something off, long before labs do.
Which nutritional deficiencies are most linked to hair loss?
The big players? Iron, ferritin (your stored iron), B12, vitamin D, zinc, protein, and sometimes essential fatty acids. Each one plays a different role in the hair growth cycle — and being low in just one can tip the balance.
What does hair loss from nutritional deficiency look like?
It’s often diffuse thinning, meaning all over, not just one patch. You might notice excessive shedding in the shower or on your pillow, a thinner ponytail, or dull, lifeless strands. The texture might shift too. It’s your body waving a red flag.
Does frequent hair washing or brushing worsen AGA?
Telogen effluvium is a sudden, diffuse shedding triggered by stress, illness, or medication, and it’s usually reversible. AGA is gradual and patterned, with miniaturized follicles and a genetic/hormonal cause.
How long after a deficiency does hair loss start?
There’s usually a 2–3 month lag between the trigger (like a crash diet, illness, or postpartum depletion) and when the shedding begins. That’s why it can feel like the hair loss came “out of nowhere.” But it didn’t, your hair’s just showing the timeline.
Can you reverse hair loss caused by poor nutrition?
Yes — but you have to be consistent. Once nutrient levels are corrected and your body feels safe again, the hair cycle can normalize. Regrowth typically starts around the 3-month mark, but full recovery takes longer. Hair needs time to catch up.
Can supplements help with nutritional hair loss?
They can, but only if you’re low in that specific nutrient. Blindly taking hair supplements is like throwing darts in the dark. It’s better to test, not guess, and build a plan based on what your body actually needs.
Why are my labs “normal” if I’m still losing hair?
“Normal” lab ranges don’t always reflect optimal levels for hair growth. For example, you might be within range for ferritin but still too low for your body to prioritize hair. Hair is sensitive. It often demands better-than-average health to thrive.
Can crash dieting or food restriction trigger hair loss?
Absolutely. When calorie or protein intake drops too low, even for a short time, your body puts non-essential functions (like hair growth) on pause. It’s a protective mechanism. But unfortunately, the hair doesn’t bounce back overnight.
Is protein really that important for healthy hair?
Yes, hair is made of keratin, a type of protein. If you’re not eating enough (especially after illness, surgery, or during high stress), your body won’t have the building blocks to keep hair growing. Think of protein as the scaffolding for your strands.
Is protein really that important for healthy hair?
Yes, hair is made of keratin, a type of protein. If you’re not eating enough (especially after illness, surgery, or during high stress), your body won’t have the building blocks to keep hair growing. Think of protein as the scaffolding for your strands.
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