Home Ingredients Lustriva® (Arginine Silicate + Magnesium Biotinate)
Hair, Skin & Nails

Lustriva® (Arginine Silicate + Magnesium Biotinate)

Evidence Level
Moderate
1 Clinical Trial
2 Documented Benefits
3/5 Evidence Score

Lustriva® is a branded ‘beauty from within’ ingredient from Nutrition21 that pairs bonded arginine silicate (a stabilized form of silicon, the same complex sold as Nitrosigine®) with magnesium biotinate, a more soluble form of biotin. The studied dose is 160 mg/day, supplying roughly 10 mg silicon and 10 mg biotin. Its evidence is a single manufacturer-funded randomized trial the high-dose arm improved measured hair density and wrinkle depth versus placebo, while a low-dose arm did not. Because that trial was industry-funded, used instrument and self-reported cosmetic measures rather than blinded dermatologist photographs, and has not been independently replicated, the hair and skin claims are best read as promising but preliminary. One practical caution: at 10 mg, the biotin in Lustriva is high enough to distort common lab tests (thyroid, troponin, hormone panels), so stop it well before bloodwork.

Studied Dose 160 mg/day (10 mg silicon + 10 mg biotin).
Active Compound Bonded arginine silicate (provides 10 mg silicon per 160 mg dose; same complex as Nitrosigine®) + magnesium biotinate (provides 10 mg biotin per 160 mg dose).

Benefits

Hair density and growth (one randomized trial)

At the studied 160 mg/day dose, measured hair density (TrichoScan) rose significantly versus placebo, with changes seen by week 3, while a lower dose did not. The hair finding is instrument-measured, from a single manufacturer-funded trial that has not been replicated.

Supported by Trial 1

Skin texture and wrinkle depth

At the studied dose, maximal wrinkle depth and skin texture improved significantly versus placebo, with the wrinkle index improving as early as week 3. These are cosmetic, instrument-based outcomes from one industry-funded study, not blinded dermatologist assessment.

Supported by Trial 1

Mechanism of action

1

Biotin — keratin synthesis cofactor

Biotin is an essential cofactor for carboxylase enzymes involved in fatty acid synthesis and amino acid metabolism, both required for keratin production (hair, nail, and skin structural protein). Note: biotin deficiency clearly causes hair loss, but biotin supplementation in non-deficient individuals has limited evidence for hair growth — most hair-growth biotin claims are extrapolated from deficiency-correction studies.

2

Silicon — connective tissue cofactor

Silicon (as orthosilicic acid or stabilized forms like arginine silicate) is involved in collagen cross-linking and glycosaminoglycan synthesis. Some evidence links higher silicon intake to bone mineral density and hair tensile strength, though dietary silicon adequacy is widespread.

3

Arginine — nitric oxide and blood flow

Arginine is the substrate for nitric oxide synthase. The bonded arginine silicate complex is the same chemistry as Nitrosigine®, which has separate evidence for elevating plasma arginine and improving vascular function at higher doses (1,500 mg/day). The Lustriva dose provides much less arginine per serving.

4

Enhanced solubility framework

Nutrition21 positions magnesium biotinate's ~40× solubility advantage as the mechanistic basis for superior delivery. Solubility correlates with dissolution speed but isn't a direct proxy for absorption — actual pharmacokinetic comparison data between magnesium biotinate and D-biotin in humans is limited.

Clinical trials

1
Randomized, Double-Blind, Placebo-Controlled Trial of Lustriva (Kalman & Hewlings, 2021)

Randomized, double-blind, placebo-controlled trial in 90 healthy women (ages 21-65) with self-reported thinning hair. Three arms over 12 weeks: placebo, low-dose Lustriva (about 3 mg biotin + 10 mg silicon), and high-dose Lustriva (160 mg/day; about 10 mg biotin + 10 mg silicon). Hair density was measured by TrichoScan; skin was assessed by instrument and self-report.

90 women, 12 weeks

The high-dose arm significantly improved measured hair density (TrichoScan) and wrinkle depth versus placebo over 12 weeks, while the low-dose arm did not. Limitations: manufacturer-funded (Nutrition21/JDS Therapeutics), single site, instrument and self-reported cosmetic outcomes rather than blinded dermatologist-rated photographs, published in a non-PubMed-indexed journal, and not independently replicated.

Side effects and drug interactions

Common Potential side effects

Generally well-tolerated in the published trial; no serious adverse events reported.
Biotin supplementation at any meaningful dose can interfere with lab tests — particularly thyroid panels, troponin, and hormone immunoassays that use biotin-streptavidin chemistry. Discontinue Lustriva ≥72 hours before lab work and inform your provider.
Mild GI distress (rare).
Allergic reactions rare; no known biotin or silicon allergies are common.

Important Drug interactions

Biotin lab interference — critical: biotin doses ≥1 mg can produce false-low or false-high results on immunoassays for thyroid hormones (TSH, free T4, free T3), troponin (cardiac), HCG (pregnancy), parathyroid hormone, and others. Hold supplement ≥72 hours before bloodwork and tell your provider you take biotin. The 10 mg biotin in Lustriva is well above the threshold for interference.
Anticoagulants/antiplatelets — arginine component may have mild blood pressure or platelet effects at high doses; the Lustriva dose is small, but theoretical caution if combined with high-dose arginine supplements.
Antihypertensives — arginine may modestly potentiate blood pressure lowering; monitor.
Pregnancy and lactation — limited specific safety data for Lustriva as a combination product; biotin and silicon are generally considered safe at dietary intake levels; consult provider.
Children — not specifically studied; the 10 mg biotin dose is well above pediatric RDA and the lab-interference concern still applies.

Featured in these supplement guides

Hair Loss→

More Hair, Skin & Nails Ingredients

Hair, Skin & Nails
Bovine Collagen
Bovine collagen is hydrolyzed collagen sourced from cow hide, bone, and cartilage — the mo…
Hair, Skin & Nails
Marine Collagen
Marine collagen is hydrolyzed collagen sourced from fish skin and scales — predominantly T…
Hair, Skin & Nails
ceratiq® (Wheat-Derived Phytoceramides — PLT Health)
ceratiq® is PLT Health Solutions' patented, clinically-studied phytoceramide ingredient —…
Hair, Skin & Nails
DermaNiA® (Niacinamide for Skin Health — Sabinsa)
DermaNiA® is Sabinsa's branded niacinamide (nicotinamide, vitamin B3) for skin health appl…

Explore Other Ingredients

Hair, Skin & Nails
Hyaluronic Acid
Hyaluronic acid is a naturally occurring substance in the body, primarily found in connect…
Immune Support
Vitamin C
Vitamin C (L-ascorbic acid) is a water-soluble essential nutrient that humans cannot synth…
Antioxidant
Lutein
Lutein is a yellow carotenoid antioxidant that plays a key role in eye health, particularl…

Frequently asked questions about Lustriva® (Arginine Silicate + Magnesium Biotinate)

What is Lustriva?

Lustriva® is a branded ‘beauty from within’ ingredient from Nutrition21 that pairs bonded arginine silicate (a stabilized form of silicon, the same complex sold as Nitrosigine®) with magnesium biotinate, a more soluble form of biotin. The studied dose is 160 mg/day, supplying roughly 10 mg silicon and 10 mg biotin.

What is Lustriva used for?

Lustriva is researched primarily for Hair, Skin & Nails. At the studied 160 mg/day dose, measured hair density (TrichoScan) rose significantly versus placebo, with changes seen by week 3, while a lower dose did not.

What is the recommended dosage of Lustriva?

The clinically studied dose is 160 mg/day (10 mg silicon + 10 mg biotin). Always follow the product label and check with a healthcare provider for personal advice.

Is Lustriva safe, and does it have side effects?

For most healthy adults, Lustriva is well tolerated at studied doses. Reported effects can include: Generally well-tolerated in the published trial; no serious adverse events reported. Biotin supplementation at any meaningful dose can interfere with lab tests — particularly thyroid panels, troponin, and hormone immunoassays that use biotin-streptavidin chemistry. It may also interact with some medications. Lustriva is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Lustriva interact with any medications?

Possible interactions include: Biotin lab interference — critical: biotin doses ≥1 mg can produce false-low or false-high results on immunoassays for thyroid hormones (TSH, free T4, free T3), troponin (cardiac), HCG (pregnancy), parathyroid hormone, and others. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Lustriva?

NutraSmarts rates the evidence for Lustriva as Moderate (3 out of 5). It is backed by 1 clinical trial and 4 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(4 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Kalman DS, Hewlings SJ A Randomized, Double-Blind Evaluation of a Novel Biotin and Silicon Ingredient Complex on the Hair and Skin of Healthy Women Journal of Clinical & Experimental Dermatology Research. 2021;12(1):551. doi: 10.35248/2155-9554.21.12.551.SourceUsed to support: The pivotal and only randomized controlled trial of Lustriva itself: 90 women with self-reported thinning hair, 12 weeks, three arms (placebo, low-dose, high-dose). The high-dose arm (160 mg/day) significantly improved hair density (TrichoScan) and wrinkle measures versus placebo; the low-dose arm did not. Manufacturer-funded (Nutrition21/JDS Therapeutics) and published in a non-PubMed-indexed journal, so the link points to the publisher DOI; results have not been independently replicated.
  2. Demir B, Cicek D, Orhan C, Er B, Erten F, Tuzcu M, Ozercan IH, Sahin N, Komorowski J, Perez Ojalvo S, Sylla S, Sahin K Effects of a Combination of Arginine Silicate Inositol Complex and a Novel Form of Biotin on Hair and Nail Growth in a Rodent Model Biological Trace Element Research. 2023;201(2):751-765. doi: 10.1007/s12011-022-03176-9.PubMedUsed to support: Rodent study using Nutrition21's arginine silicate inositol complex (the same bonded arginine silicate in Lustriva/Nitrosigine) plus magnesium biotinate, demonstrating increased hair density, anagen ratio, and elevated hair-growth signaling factors (VEGF, HGF, KGF-2, FGF-2, IGF-1, Wnt-1). Directly supports Lustriva's hair density/growth mechanism claim. (Animal model only; human RCT evidence remains limited; magnesium biotinate component also aided nail growth at higher dose.)
  3. Patel DP, Swink SM, Castelo-Soccio L A Review of the Use of Biotin for Hair Loss Skin Appendage Disorders. 2017;3(3):166-169. doi: 10.1159/000462981.PubMedUsed to support: Clinical review of 18 published cases reporting biotin supplementation improved hair and nail outcomes; all cases involved underlying pathology (deficiency or brittleness syndromes). Provides context for Lustriva's bioavailable biotin claim. Caution: the review concludes evidence for supplementation in healthy individuals is limited; benefit is most established in cases of deficiency or specific nail/hair pathology.
  4. Araújo LA, Addor F, Campos PMBGM Use of silicon for skin and hair care: an approach of chemical forms available and efficacy Anais Brasileiros de Dermatologia. 2016;91(3):331-335. doi: 10.1590/abd1806-4841.20163986.PubMedUsed to support: Narrative review comparing silicon forms for skin and hair applications, concluding orthosilicic acid (OSA) — the bioavailable silicon form released by arginine silicate — has the highest bioavailability and supports collagen synthesis and hair/nail health. Supports Lustriva's bioavailable silicon source and scalp blood-flow mechanism claims. (Review article covering the silicon compound class; not a clinical trial of Lustriva specifically.)