The Complete Lengthening & Thickening Collection

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$122.00
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4.9
Rated 4.9 out of 5 stars
139 Reviews

Unlock the secret to longer, stronger, and fuller hair with our Complete Lengthening & Thickening Collection. Infused with a powerful blend of Biotin, Batana Oil, Rosemary Oil, and Oat Protein, this complete hair care system is designed to nourish, fortify, and promote length.

Proven Results:

  • Clinically proven to improve hair length & thickness in 90 days*
  • Increases hair thickness by 50% in 90 days*
  • Reduces hair loss & breakage in 90 days
  • Improves overall hair health by 75% in 90 days*

    *Based on a 90 day third-party clinical study when using Hair Lengthening Treatment Serum & Thickening Foam regimen

For: Longer Hair, Stronger Hair, Gentle Cleansing, Nourished Hair & Scalp, Frizz Control and Easy Detangling

Why We Love:

  • Supports longer, thicker, and stronger hair
  • Reduces shedding and breakage
  • Deeply nourishes and enriches with nutrients
  • Strengthens fragile strands
  • Offers easy detangling and frizz control
  • Boosts volume at the root
  • Improves hair health
  • Great for thinning and fine hair
  • For all hair types
  • Free of silicones, sulfates, parabens
  • Dermatologist-Tested
  • Vegan & Cruelty-Free

Biotin Wash Bundle includes:

  • Biotin Shampoo (10fl oz): Gently cleanses and strengthens hair at the root while promoting length and adding shine. Leaves hair feeling fuller, softer, and more nourished.
  • Biotin Conditioner (10fl oz): Deeply conditions to reduce frizz, protect against shedding, and improve hair health. Enriches strands with nutrients and provides extra slip for easy detangling.
  • Hair Lengthening Treatment Serum (4.2fl oz): Fortifies hair at the root and supports a healthy scalp microbiome to promote longer hair. Packed with L-Arginine, Saw Palmetto, and Turmeric Oil for clinically proven results within 90 days when used with Thickening Foam.
  • Thickening Foam Treatment (4.2fl oz): A multipurpose lightweight foam that boosts volume at the root, improves hair thickness and reduces breakage. Contains L-Arginine, Oat Straw Extract, and Arnica to visibly enhance hair health. Clinically proven results in 90 days when used with Hair Lengthening Treatment Serum.

Refer to the description of each individual item for complete product information.

Refer to the ingredients of each individual item for complete ingredient information.

Step 1: Apply Biotin Shampoo to scalp and hair. Massage into a lather and rinse thoroughly.

Step 2: Follow with Biotin Conditioner and apply throughly to wet hair. Leave in for a few minutes. Detangle hair using our Flexi Brush then rinse out.

Step 3: Divide hair into sections & apply Hair Lengthening Treatment Serum directly to scalp on wet or dry hair. Work product in using fingertips and allow to absorb for at least 3 minutes.

Step 4: Apply 1-2 pumps of Thickening Foam directly to scalp & roots focusing on areas where hair is thinning. Work product in using fingertips. Allow to absorb for at least 3 minutes.

For optimal results use Hair Lengthening Treatment Serum and Thickening Foam daily for 90 days.

  • Free of Silicones, Sulfates, Parabens 
  • Dermatologist-Tested 
  • Vegan & Cruelty Free 

Rizos Curls is a Climate Neutral Certified Brand  

Rizos Curls is a Cruelty Free Brand 

4.9
Rated 4.9 out of 5 stars
Based on 139 reviews
Slide 1 selected
139 reviews
  • R
    Rebekah
    Verified Reviewer
    Reviewing
    Biotin Shampoo
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    Best shampoo

    This shampoo is the best. It leaves your hair feeling like silk. It cleans your scalp without drying it out. It also smells amazing.

  • KF
    Kareem F.
    Verified Buyer
    Reviewing
    Biotin Conditioner
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    My new go too

    Been using this conditioner and matching shampoo, I am 4 months post hair transplant and my doctor said these two are great!

  • MH
    missy H.
    Verified Buyer
    Reviewing
    Biotin Shampoo
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    biotin shampoo

    very sofening!

  • KS
    Katia S. G.
    Verified Buyer
    Reviewing
    Biotin Conditioner
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Biotin Shampoo and Conditioner

    This set cleans my hair well and doesn't leave residue buildup since I have oily hair.

  • AV
    Ashley V.
    Verified Buyer
    Reviewing
    Thickening Foam
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Love!!

    This thickening foam is so good and doesn’t leave the hair flaky or too crunchy like other foams. The sent is also mild, not too strong just how I like, simple. Will definitely buy again!

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