ageLOC® Nutriol® Scalp & Hair Serum (AU)

The ageLOC Nutriol Scalp & Hair Serum is the concentrated treatment product in Nu Skin's Nutriol hair care range — and arguably the product that does most of the heavy lifting. Unlike shampoos and conditioners that spend limited time on the scalp before rinsing, this is a leave-in serum applied directly where hair follicles live. Its primary active, Tricalgoxyl (derived from Undaria pinnatifida brown algae), delivers polysaccharides and trace minerals to the scalp environment, while the ageLOC proprietary blend targets gene expression patterns associated with the ageing process at the scalp level.

What Makes the Nutriol Serum Worth Attention

The fundamental problem with most "thickening" hair products is that they coat the hair shaft to create temporary volume — which washes out. The Nutriol Serum takes a different approach by targeting the scalp itself. Tricalgoxyl has been studied for its effects on hair follicle anchoring strength, meaning it works on the root environment rather than the visible hair strand. In Nu Skin's clinical testing, participants using the serum daily for 90 days showed measurable improvement in visible hair density compared to baseline.

The formulation is genuinely non-greasy — a claim many scalp treatments make but few deliver on. The serum absorbs within 60–90 seconds of application and leaves no visible residue or oily feel, which makes it practical for morning use before styling. It contains no silicones that might create build-up on the scalp over time, and the dropper applicator allows precise placement along the part line and areas of most concern.

Key Ingredients

Tricalgoxyl — the headline ingredient, sourced from brown algae. Contains specific polysaccharides that nourish the scalp matrix around hair follicles. In vitro studies by ingredient developer Sederma demonstrated support for follicle anchoring and the growth cycle.

ageLOC Blend — Nu Skin's proprietary complex targeting youth gene clusters. At the scalp level, this addresses the gradual changes in gene expression that affect hair follicle cycling as we age.

Red Clover Extract (Trifolium pratense) — provides isoflavones, particularly biochanin A, which has been studied for its role in supporting the anagen (active growth) phase of the hair cycle. Published research in the Journal of Cosmetic Dermatology has examined biochanin A's interaction with 5-alpha reductase activity.

Biotin (Vitamin B7) — included at a topical level to support keratin infrastructure. While oral biotin supplementation has mixed evidence for hair growth in non-deficient individuals, topical application delivers directly to the area of use.

How Australians Are Using the Nutriol Serum

Hair thinning is more common in Australia than many people realise. The Australasian College of Dermatologists notes that approximately 50% of men and 40% of women will experience noticeable thinning during their lifetime. Contributing factors beyond genetics include UV damage to the scalp (Australia receives some of the highest UV indices globally), chlorine exposure from pool swimming, and iron or zinc deficiencies — which are not uncommon in Australian women of childbearing age according to ABS health survey data.

The serum works as a daily treatment regardless of these specific causes, because it focuses on nourishing the scalp environment rather than targeting one pathway. Apply 1–2 droppers full directly to the scalp — not the hair lengths — on towel-dried or dry hair. Part the hair in sections to access the scalp surface. Massage with fingertips for at least 60 seconds to distribute evenly. No rinsing required. Can be used morning, evening, or both. The product works well under styling products and does not create a waxy or greasy layer.

For enhanced delivery, Nu Skin recommends using the serum in conjunction with the ageLOC Galvanic Spa device fitted with the scalp conductor attachment. The galvanic current helps drive ingredients deeper into the scalp — though the serum works effectively on its own without the device.

Frequently Asked Questions

How soon will I see results?
Most users notice improved hair texture and reduced shedding within 3–4 weeks. Visible density changes typically require 8–12 weeks of daily use, consistent with hair growth cycle timelines (the anagen phase lasts 2–6 years, but newly supported follicles show visible change within 2–3 growth cycles).

Does it work for hereditary hair loss?
The serum supports scalp health and follicle nourishment, which benefits anyone experiencing thinning. For androgenetic alopecia specifically, it works best as a complementary product alongside any medical treatments your dermatologist may recommend.

Can I use it on coloured or chemically treated hair?
Yes. The serum is applied to the scalp, not the hair shaft, so it does not interact with colour treatments. It contains no sulphates, parabens, or ingredients known to strip colour.

How long does one bottle last?
At the recommended 1–2 droppers per day, a single 75ml bottle lasts approximately 8–10 weeks for most users.

Important Information

Individual results may vary. This product is intended for cosmetic use only and is not designed to diagnose, treat, cure, or prevent any disease or skin condition. Discontinue use if irritation occurs and consult a dermatologist. Patch test recommended before first use.

Clinical results referenced are from studies conducted or commissioned by Nu Skin Enterprises, Inc. and may not reflect typical consumer experience.

NuBest Skin is an Independent Nu Skin Brand Affiliate. This website is independently operated and is not produced, endorsed, or approved by Nu Skin Enterprises, Inc.

Sources & References

1. Nu Skin Enterprises, Inc. — Official Product Information, nuskin.com/au
2. Australasian College of Dermatologists — Hair Loss Fact Sheet, dermcoll.edu.au
3. Sederma — Tricalgoxyl Technical Documentation (ingredient supplier data)
4. Journal of Cosmetic Dermatology — Biochanin A and hair follicle studies
5. Australian Bureau of Statistics — National Health Survey, Iron and Zinc Status, 2022

Product information reviewed by the NuBest Skin Editorial Team. Last updated April 2026.