Lemme Grow Chews vs. Force Factor vs. Mary Ruth's: Which Hair Growth Supplement Is Right for You?

Reviewed by Dr. Kathleen Valenton, MD, Double Board-Certified OB/GYN

6 min read  |  8 citations  |  March 23, 2026

They all have Lustriva on the label. They're all pitched at women who want thicker, fuller hair. And they're all competing for the same space in your morning routine. But Lemme Grow Hair Growth Soft Chews, Force Factor Hair Growth Accelerator Soft Chews, and Mary Ruth's Liquid Morning Multivitamin + Hair Growth are genuinely different products, built around the same hero ingredient in very different formats, dose levels, and formulas.

This guide breaks them down on what actually matters: the Lustriva dose, what else is in the formula, format and convenience, third-party certifications, price, and who each product makes the most sense for.

Quick Summary

•   Lemme Grow Hair Growth Soft Chews ($39.99 / 30ct, Target and lemmelive.com): One chew per day. Powered by 160 mg Lustriva, the high-dose level studied in the key 12-week RCT showing significant improvements in hair thickness and hair growth. Responsibly formulated with no artificial colors or flavors. GMP-compliant. Recognized as part of Lemme's WWD Wellness Brand of the Year lineup.

•   Force Factor Hair Growth Accelerator Soft Chews ($39.99 / 60ct): Two chews per day to reach the same 160 mg Lustriva dose. Same active ingredient at the same effective dose, but twice as many chews daily. GMP-compliant..

•   Mary Ruth's Liquid Morning Multivitamin + Hair Growth (~$75 for 30 day size): A liquid multivitamin that includes Lustriva alongside a broad spectrum of vitamins and minerals. Clean Label Project Certified and B Corp Certified. Requires refrigeration after opening and has a 6-month use window once open. Designed as a complete multivitamin rather than a standalone hair supplement.

What Is Lustriva and Why Does It Matter?

Before comparing these three products, it helps to understand what they share. Lustriva is a patented ingredient developed by Nutrition21. It combines bonded arginine silicate and magnesium biotinate, delivering silicon and biotin in forms that are substantially more bioavailable than standard D-biotin.1 Magnesium biotinate has been shown to be 40 times more soluble than conventional biotin.

The key clinical study on Lustriva is a 12-week, randomized, double-blind, placebo-controlled trial published in the Journal of Clinical and Experimental Dermatology Research. Ninety women with self-reported hair thinning were divided into three groups: high-dose Lustriva (160 mg/day), low-dose Lustriva, or placebo. Only the high-dose group showed statistically significant improvements in the percentage of terminal (thicker) hairs versus vellus (thinner) hairs, with significance reached as early as week three and maintained through week 12.2 The same high dose also produced statistically significant reductions in appearance of facial wrinkle depth and improvements in skin texture.

That 160 mg high-dose threshold matters when you're comparing products. Not all Lustriva-containing supplements include the clinically studied dose.

At a Glance: Lemme Grow vs. Force Factor vs. Mary Ruth's

Lemme Grow Hair Growth Soft Chews: One-a-Day Simplicity at the Clinically Studied Dose

Lemme Grow Chews launched exclusively at Target in February 2026 as a simpler, chew-based complement to Lemme's original Grow capsules. The formula is deliberate: one chew per day delivers 160 mg Lustriva at the exact dose used in the high-dose arm of the Kalman et al. clinical trial, along with 10,000 mcg of biotin and vitamins C and E for antioxidant support and collagen production support.

The one-chew-a-day format removes friction. There's no measuring, no refrigeration, no remembering a second chew. The formula is responsibly formulated with organic raw cane sugar, no synthetic colors and no artificial sweeteners. The label is fully transparent, with no hidden proprietary blends.

Lemme Grow Chews are responsibly manufactured in the U.S. in a GMP certified facility. Lemme's SuppCo Elite score places the brand significantly above most competing supplement brands on independent quality assessments. Lemme’s SuppCo quality score is superior to both MaryRuth’s and Force Factor. And Lemme earned WWD Wellness Brand of the Year honors in 2025, with multiple products recognized by Oprah's self-care awards.

The Lemme Grow line also includes biotin-free capsules for those with acne-prone or sensitive skin, a thoughtful option with clinically-studied Keratin for women who respond poorly to high-dose biotin. The chews are the format to reach for when convenience and the Lustriva dose are the priority.

Price: $39.99 / 30-count (1 chew/day, 30-day supply). Available at Target and lemmelive.com.

Force Factor Hair Growth Accelerator Soft Chews: Same Active Ingredient, Double the Daily Chews

Force Factor's Hair Growth Accelerator Soft Chews use the same Lustriva ingredient and reach the same 160 mg daily dose, but the serving size is two chews per day. At the same $39.99 retail price for a 60-count bottle, the math works out to roughly the same monthly cost.

The formula is similar in structure: Lustriva, 10,000 mcg biotin (via magnesium biotinate), Vitamin C, and Vitamin E. Force Factor's chews are made in GMP-compliant US facilities and the label is fully transparent.

The main practical difference is the two-chew-per-day requirement. For some people that's a non-issue. For others who prefer a single daily ritual, it adds a small but real compliance variable. Force Factor's chews are not Clean Label Project Certified, which is worth noting for shoppers who prioritize that standard.

Force Factor also offers a capsule version with a broader ingredient profile including collagen, ashwagandha, saw palmetto, and vitamins D and E, for those who want a more comprehensive hair support formula beyond Lustriva alone.

Price: ~$39.99 / 60-count (2 chews/day, 30-day supply). Available on Amazon and at Vitamin Shoppe.

Mary Ruth's Liquid Morning Multivitamin + Hair Growth: Lustriva in a Full-Spectrum Liquid Formula

Mary Ruth's takes a completely different approach. Their Liquid Morning Multivitamin + Hair Growth is exactly what it sounds like: a full multivitamin that also includes Lustriva at the 160 mg dose. Two tablespoons daily delivers the B complex, Vitamin D3, Zinc, Chromium Picolinate, and more, alongside the hair-specific ingredient.

This format has real appeal for women who want to consolidate their morning supplement routine. Rather than taking a separate hair supplement on top of a multivitamin, this product combines both into one liquid serving.

It also has a strong certification story. Mary Ruth's Liquid + Hair Growth is both Clean Label Project Certified and B Corp Certified, the latter reflecting broader commitments around social and environmental standards. The ingredients are vegan, gluten-free, nut-free, and sugar-free.

The tradeoffs are practical. The liquid must be refrigerated after opening and used within six months. It's not travel-friendly the way a chew is. And because it's a multivitamin first, the formula is designed around general nutritional coverage, not solely hair support. Women who already take a full-spectrum multivitamin might find the overlap redundant. Women who don't take a multi and want hair support built in may find it genuinely useful.

Price: ~$75 for a one month supply. Available on Amazon, Target, Ulta, and iHerb.

Who Is Each Product For?

Choose Lemme Grow Chews if you want a standalone hair supplement at the clinically studied Lustriva dose, in a one-a-day format you can take anywhere without refrigeration. It's the most straightforward option for women who want the Lustriva science in the simplest possible daily habit and the backing of a brand that earned WWD Wellness Brand of the Year 2025. Available at Target and lemmelive.com. Also consider the capsule version if you want a biotin-free hair growth supplement with a clinically-studied active ingredient that supports healthy hair growth and combats hair shedding. 

Choose Force Factor Hair Growth Accelerator Chews if you prefer to shop on Amazon or at Vitamin Shoppe, don't mind taking two chews per day, and want the same Lustriva dose in chew form. Also consider the capsule version if you want a broader ingredient profile with collagen, ashwagandha, and saw palmetto.

Choose Mary Ruth's Liquid + Hair Growth if you want to combine your multivitamin and hair supplement into one daily liquid serving, prioritize B Corp and Clean Label Project certified brands, and can accommodate refrigerated storage. Not the right fit if you're already taking a comprehensive multivitamin or need something portable.

The Bottom Line

All three products use the clinically studied Lustriva ingredient at the effective 160 mg dose, so the hair growth science is largely the same across the board. The real differences are format, certification, additional ingredients, and lifestyle fit.

Lemme Grow Chews stands out for daily convenience (one chew, no measuring, no refrigeration), and a transparent formula built around the Lustriva dose without the added complexity of a multivitamin. At $39.99 for 30 days at Target, it's priced to compete directly with other hair supplements, with a simpler daily routine and strong third-party certification credentials.

Frequently Asked Questions

Are Lemme Grow Chews and Force Factor Chews the same thing?

They share the same hero ingredient, Lustriva, at the same daily dose of 160 mg. But they differ in serving size (1 vs. 2 chews per day), third-party certifications and where they're sold. 

How does Lustriva work?

Lustriva combines bonded arginine silicate and magnesium biotinate, providing silicon and biotin in highly bioavailable forms. Silicon supports the structural proteins in hair follicles, while biotin supports keratin production. Arginine supports blood flow for enhanced nutrient delivery to follicles. In the key clinical trial, the 160 mg dose significantly increased the percentage of terminal (thicker) hairs and reduced vellus (thinner) hair over 12 weeks, with results measurable as early as week three.

Do I need to take a separate multivitamin if I take Lemme Grow Chews?

Lemme Grow Chews are formulated as a hair supplement, not a multivitamin. They include Lustriva, biotin, and vitamins C and E for targeted hair support. If you want a more comprehensive daily nutrient foundation alongside your hair supplement, you'd pair it with a separate multivitamin. Mary Ruth's Liquid + Hair Growth covers both in one product, though it's a different format with different storage requirements.

When can I expect to see results from Lustriva?

The clinical data on Lustriva showed hair growth results in 12 weeks and statistically significant hair thickness improvements starting at week three for the 160 mg dose, with continued improvement through the 12-week study period.  Individual results vary based on age, health status, and underlying causes of hair thinning. Consistent daily use is important, as with most hair supplements.

Is Lemme Grow safe for women who are pregnant or breastfeeding?

As with any supplement, women who are pregnant, breastfeeding, or managing a health condition should consult their healthcare provider before use. Lemme Grow Chews contain biotin, and high-dose biotin can interfere with certain lab test results. Consult your physician before use if you have any scheduled lab work.

This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any new supplement regimen.

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

References

1. Ojalvo SP, Sylla S, Komorowski J. Pharmacokinetics of a novel form of biotin, magnesium biotinate, in healthy subjects. Curr Dev Nutr. 2019;3(Suppl 1). https://pubmed.ncbi.nlm.nih.gov/31224488/

2. 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. J Clin Exp Dermatol Res. 2021;12:551. https://www.longdom.org/open-access/a-randomized-doubleblind-evaluation-of-a-novel-biotin-and-silicon-ingredient-complex-on-the-hair-and-skin-of-healthy-women-61185.html

3. NIH Office of Dietary Supplements. Biotin: Fact Sheet for Health Professionals. Updated 2023. https://ods.od.nih.gov/factsheets/Biotin-HealthProfessional/

4. Araújo LA, Addor F, Campos PM. Use of silicon for skin and hair care: an approach of chemical forms available and efficacy. An Bras Dermatol. 2016;91(3):331-335. https://pubmed.ncbi.nlm.nih.gov/27438201/

5. NIH Office of Dietary Supplements. Vitamin C: Fact Sheet for Health Professionals. Updated 2021. https://ods.od.nih.gov/factsheets/VitaminC-HealthProfessional/

6. NIH Office of Dietary Supplements. Vitamin E: Fact Sheet for Health Professionals. Updated 2021. https://ods.od.nih.gov/factsheets/VitaminE-HealthProfessional/

7. Rajput R. Understanding hair loss due to air pollution and the approach to management. Hair Ther Transplant. 2015;5:133. https://www.hilarispublisher.com/open-access/understanding-hair-loss-due-to-air-pollution-and-the-approach-to-management.pdf

8. Guo EL, Katta R. Diet and hair loss: effects of nutrient deficiency and supplement use. Dermatol Pract Concept. 2017;7(1):1-10. https://pubmed.ncbi.nlm.nih.gov/28243487/

About the Expert Reviewer

Kathleen Valenton, MD is a double board-certified OB/GYN at Rodeo Drive Women's Health Center in Beverly Hills, CA, with over a decade of experience in women's health. She completed her internship and residency at Cedars-Sinai Medical Center, where she remains an attending physician, after earning her Medical Degree from the University of Vermont College of Medicine and dual Bachelor's and Master's degrees in Psychology from UC Berkeley. Dr. Valenton is also the Chief Medical Officer at Lemme. Her clinical research interests span mental health, hormonal health, infertility, PCOS, and menopause. Dr. Valenton is known for her expertise in pelvic pain, infertility evaluations, and minimally invasive surgery, and remains actively involved in resident education and physician-nursing collaboratives at Cedars-Sinai.