Why Black Sesame Has Been Hair's Best-Kept Secret for Centuries

In Traditional Chinese Medicine, black sesame has been used for centuries to nourish what practitioners call "Kidney Jing" — the essential vitality associated with reproductive health, aging, and in particular, hair.

Modern nutritional science offers a different vocabulary for the same observations. Black sesame is exceptionally high in minerals that Western research now directly links to hair growth and hair loss prevention.

Why black sesame is a hair food

Hair follicles are among the most metabolically active structures in the body. They require a continuous supply of nutrients to sustain the growth cycle — and they're sensitive indicators of nutritional status. When minerals are low, hair follicles are among the first to feel it.

Iron deficiency is the leading nutritional cause of hair loss in women. Iron is required for the production of DNA in hair matrix cells. Even subclinical deficiency — ferritin below optimal but not yet clinically anemic — is associated with increased shedding and slowed regrowth.

Zinc directly inhibits 5-alpha reductase, the enzyme that converts testosterone to DHT. DHT is the primary driver of androgenic hair thinning in both men and women. Zinc deficiency is frequently found in people presenting with diffuse hair loss. Supplementation has been shown to reduce shedding in deficient individuals.

Copper is required for the synthesis of melanin — the pigment that gives hair its color. It also plays a role in keratinocyte function and collagen cross-linking in the scalp. Copper-containing enzymes are involved in the structural integrity of hair itself.

Magnesium deficiency is associated with follicular calcification — calcium deposits around the hair follicle that can restrict blood supply and impair growth. Magnesium helps prevent this process.

The perimenopause window

Hair thinning often accelerates during perimenopause, typically beginning in the mid-30s to mid-40s. Estrogen supports hair growth; as levels fluctuate, the growth phase shortens and shedding increases.

What's less often discussed is that this is also a period of increased nutritional demand. Hormonal shifts affect how efficiently the body absorbs and uses minerals. Women who were marginally deficient before perimenopause often become more noticeably so during it.

In SESA's pre-launch survey, 42% of women aged 30–50 reported hair thinning as a concern. Most hadn't considered that it might have a nutritional component.

What SESA provides per serving

Iron 20% DV, magnesium 20% DV, calcium 15% DV, zinc 15% DV, copper 90% DV, manganese 25% DV, protein 5g, fiber 4g — from black sesame, pumpkin seeds, chia, and flaxseed.

Not a hair supplement. Real food — with a mineral profile that happens to align precisely with what hair follicles need most.

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SESA Black Sesame Crunch launches June 2026. Learn more at sesawellness.com.