Soapbox Oh My Growth Lengthening Vitamin Booster in dark amber bottle with black pointed cap and purple label, 5 fl oz size.
Woman with long brown wavy hair against a pink background with product messaging overlay.
Close-up of long brown hair with purple overlay displaying clinical test results and percentages.
Before and after comparison of long dark wavy hair shown from behind on pink background.
Dark brown bottle with black spray nozzle labeled "Oh My Growth Lengthening Vitamin Booster" surrounded by water droplets on
Hand holding dark purple bottle with dropper dispensing clear liquid onto palm with white cream.
Three Soapbox hair care bottles: shampoo and conditioner with biotin and superfruit, plus Oh My Growth lengthening vitamin bo
Hands with water streaming over them, displaying product benefits text and cruelty-free certification badge.
Three hands holding rectangular soap bars in pink, green, and white colors.
Dark amber liquid vitamin booster in a bottle with black pointed cap and purple label band.
Soapbox Oh My Growth Lengthening Vitamin Booster in dark amber bottle with black pointed cap and purple label, 5 fl oz size.
Woman with long brown wavy hair against a pink background with product messaging overlay.
Close-up of long brown hair with purple overlay displaying clinical test results and percentages.
Before and after comparison of long dark wavy hair shown from behind on pink background.
Dark brown bottle with black spray nozzle labeled "Oh My Growth Lengthening Vitamin Booster" surrounded by water droplets on
Hand holding dark purple bottle with dropper dispensing clear liquid onto palm with white cream.
Three Soapbox hair care bottles: shampoo and conditioner with biotin and superfruit, plus Oh My Growth lengthening vitamin bo
Hands with water streaming over them, displaying product benefits text and cruelty-free certification badge.
Three hands holding rectangular soap bars in pink, green, and white colors.
Dark amber liquid vitamin booster in a bottle with black pointed cap and purple label band.

Better Because
  • Clinically tested: 91% said hair felt healthier, 85% saw softer, shinier hair, and 82% noticed increased thickness after 28 days*
  • Biotin B7 promotes the appearance of fuller, thicker-looking strands with every use
  • Vegan collagen supports stronger-feeling hair and helps defend against breakage over time
  • Omega-3 oil blend from amla, rapeseed, sesame, and linseed oils helps improve visible thickness and supports scalp health
  • Banana extract and hydrolyzed rice amino acids help reduce breakage for stronger, more resilient strands
  • 5X Vitamin Complex (B9, B5, C, B7, E) for healthier-looking hair made easy
  • Dermatologist tested, hypoallergenic. Harsh sulfate-free, silicone-free, paraben-free, color-safe, vegan
  • Key Scent Notes: Bergamot. Apple Blossom. Tonka Bean.

Beauty with purpose is beauty that’s better. Every bottle donates a bar of soap to someone in need. Track your impact with the Hope Code on your bottle.

*28-day third-party clinical study, 33 participants, Aug. 2025

Best For

For fine to thick hair experiencing breakage, visible thinning, or difficulty retaining length. Use 3 times per week for best results.

How to Use
  1. After shampooing, apply to scalp and massage through lengths, or blend into your conditioner and apply as you normally would.
  2. Leave in for 3 to 5 minutes, then rinse thoroughly.
  3. Use 3 times per week for best results.
  4. Pair with Biotin & Superfruit Volumizing Shampoo and Conditioner for the full system.

Pro tip: For dry hair, add Oh My Growth to your conditioner for an even more hydrating experience.

Ingredients

Water (Aqua), Glycerin, Biotin (Vitamin B7), Emblica Officinalis (Amla) Fruit Extract (Omega 3 Source), Brassica Campestris (Rapeseed) Seed Oil (Omega 3 Source), Sesamum Indicum (Sesame) Seed Oil (Omega 3 Source), Linum Usitatissimum (Linseed) Seed Oil (Omega 3 Source), *Hydrolyzed Soy Protein, *Rice Amino Acids, *Proline, *Hydrolyzed Adansonia Digitata Extract, Carica Papaya (Papaya) Fruit Extract, Musa Sapientum (Banana) Fruit Extract, Pyrus Malus (Apple) Fruit Extract, Ascorbic Acid (Vitamin C), Panthenol (Vitamin B5), Tocopheryl Acetate (Vitamin E), Folic Acid (Vitamin B9), Benzyl Alcohol, Carrageenan, Xanthan Gum, Polyquaternium-39, Dehydroacetic Acid, Hexyl Cinnamal, Limonene, Linalool, Pantothenic Acid, Sodium Hyaluronate, Propylene Glycol, Fragrance (Parfum)

Oh My Growth

Lengthening Vitamin Booster

Clinically tested rinse-out vitamin booster treatment formulated to support visibly fuller, thicker-looking, stronger-feeling hair with every use. Helps defend against breakage so hair looks thicker and retains length over time.

*28-day third-party clinical study, 33 participants, Aug. 2025

$9.99

GOES WELL WITH

Biotin & Superfruit Restore & Volume Shampoo

Biotin & Superfruit Restore & Volume Shampoo

$9.99
Biotin & Superfruit Restore & Volume Conditioner

Biotin & Superfruit Restore & Volume Conditioner

$9.99

Better Because
  • Clinically tested: 91% said hair felt healthier, 85% saw softer, shinier hair, and 82% noticed increased thickness after 28 days*
  • Biotin B7 promotes the appearance of fuller, thicker-looking strands with every use
  • Vegan collagen supports stronger-feeling hair and helps defend against breakage over time
  • Omega-3 oil blend from amla, rapeseed, sesame, and linseed oils helps improve visible thickness and supports scalp health
  • Banana extract and hydrolyzed rice amino acids help reduce breakage for stronger, more resilient strands
  • 5X Vitamin Complex (B9, B5, C, B7, E) for healthier-looking hair made easy
  • Dermatologist tested, hypoallergenic. Harsh sulfate-free, silicone-free, paraben-free, color-safe, vegan
  • Key Scent Notes: Bergamot. Apple Blossom. Tonka Bean.

Beauty with purpose is beauty that’s better. Every bottle donates a bar of soap to someone in need. Track your impact with the Hope Code on your bottle.

*28-day third-party clinical study, 33 participants, Aug. 2025

Best For

For fine to thick hair experiencing breakage, visible thinning, or difficulty retaining length. Use 3 times per week for best results.

How to Use
  1. After shampooing, apply to scalp and massage through lengths, or blend into your conditioner and apply as you normally would.
  2. Leave in for 3 to 5 minutes, then rinse thoroughly.
  3. Use 3 times per week for best results.
  4. Pair with Biotin & Superfruit Volumizing Shampoo and Conditioner for the full system.

Pro tip: For dry hair, add Oh My Growth to your conditioner for an even more hydrating experience.

Ingredients

Water (Aqua), Glycerin, Biotin (Vitamin B7), Emblica Officinalis (Amla) Fruit Extract (Omega 3 Source), Brassica Campestris (Rapeseed) Seed Oil (Omega 3 Source), Sesamum Indicum (Sesame) Seed Oil (Omega 3 Source), Linum Usitatissimum (Linseed) Seed Oil (Omega 3 Source), *Hydrolyzed Soy Protein, *Rice Amino Acids, *Proline, *Hydrolyzed Adansonia Digitata Extract, Carica Papaya (Papaya) Fruit Extract, Musa Sapientum (Banana) Fruit Extract, Pyrus Malus (Apple) Fruit Extract, Ascorbic Acid (Vitamin C), Panthenol (Vitamin B5), Tocopheryl Acetate (Vitamin E), Folic Acid (Vitamin B9), Benzyl Alcohol, Carrageenan, Xanthan Gum, Polyquaternium-39, Dehydroacetic Acid, Hexyl Cinnamal, Limonene, Linalool, Pantothenic Acid, Sodium Hyaluronate, Propylene Glycol, Fragrance (Parfum)

GOES WELL WITH

Biotin & Superfruit Restore & Volume Shampoo

Biotin & Superfruit Restore & Volume Shampoo

$9.99
Biotin & Superfruit Restore & Volume Conditioner

Biotin & Superfruit Restore & Volume Conditioner

$9.99
CLINICALLY TESTED VOLUMIZES + STRENGTHENS NO WEIGH-DOWN CRUELTY-FREE GIVES BACK
CLINICALLY TESTED VOLUMIZES + STRENGTHENS NO WEIGH-DOWN CRUELTY-FREE GIVES BACK

Not Just Clean. Clinically Better.

Most clean haircare stops at what’s removed. We focus on what actually works. Oh My Growth is part of Soapbox’s clinically tested volumizing system—designed to strengthen, thicken, and improve the look and feel of your hair.

This is clean performance that delivers. This is Stand For Better.

Clinically Proven Results

96%

would switch to this system

91%

said hair felt healthier

85%

saw softer, shinier hair

85%

said hair looked less damaged

82%

saw increased thickness

Based on a 28-day third-party consumer study using the full Biotin system.

Oh My Growth Lengthening Vitamin Booster
    Oh My Growth Lengthening Vitamin Booster
  • → Stronger strands with less breakage over time
  • → Lightweight volume without stiffness or residue
  • → Boosts structure for fuller-looking hair

How It Works

Targets weak strands to reduce breakage
Smoothes cuticle for shine and softness
Boosts structure for fuller-looking hair

Beauty with Purpose is Beauty that's Better

Clean, Vitamin-Rich Ingredients

Nutrient-dense formulas that nourish and support long-term hair and skin health.

Better Impact. Bigger Difference.

Every Soapbox purchase donates a bar of soap to someone in need.

Clinically Tested Formulas

Tested to deliver visible, consistent results you can trust.

STAND FOR BETTER

STAND FOR BETTER

DRUG FREE |
CLEAN SCIENCE |
VEGAN |
CRUELTY-FREE |
GIVES BACK |

Every Bottle Gives Back

It’s as easy as 1 for 1. For every product purchased, we donate soap and support hygiene education worldwide.

Together, we've donated more than 60 million bars and counting. Because what you put on your hair and body should stand for something.
Learn About Our Impact

Every Bottle Gives Back

It’s as easy as 1 for 1. For every product purchased, we donate soap and support hygiene education worldwide.

Together, we've donated more than 60 million bars and counting. Because what you put on your hair and body should stand for something.
Learn About Our Impact
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