Two bottles of Tree To Tub Thickening Collagen and Biotin Shampoo & Conditioner Starter Set for fine, flat hair, displayed with lemons, tea tree leaves, argan and macadamia nuts—your biotin duo for fuller-looking hair. Two sets of Tree To Tub Thickening Collagen and Biotin Shampoo & Conditioner Starter Set bottles are shown with an arrow between them, indicating new packaging. The text says “Fresh Look, Same Formula.” A packaging update note is at the bottom. A woman in a brown bikini touches her wet hair in the shower as text promotes Tree To Tub’s Thickening Collagen and Biotin Shampoo & Conditioner Starter Set for fuller, softer, smoother hair. Three icons highlight its key benefits. A hand dispenses Tree To Tub Thickening Collagen and Biotin Shampoo beside the matching conditioner on a bathroom counter with a wooden hairbrush. Benefits include volume, less breakage, smoother hair, and sulfate-free care. A woman with long, shiny brown hair touches her head and hair. Circular labels highlight concerns: flat, limp look; frizz and flyaways; breakage-prone strands—just what Tree To Tub’s Thickening Collagen and Biotin Shampoo & Conditioner Starter Set targets.
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Two bottles of Tree To Tub Thickening Collagen and Biotin Shampoo & Conditioner Starter Set for fine, flat hair, displayed with lemons, tea tree leaves, argan and macadamia nuts—your biotin duo for fuller-looking hair.

Tree To Tub Volumizing Shampoo & Conditioner Set

2 items

Why we love it

  • PETA-certified and 100% vegan, perfect for a natural lifestyle
  • Contains Biotin and Vegan Collagen to strengthen hair and prevent moisture loss
  • Unique botanical blend relieves flaky scalp and soothes sensitive skin.
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Scent: Sicilian Lemon & Tea Tree

Volumizing Shampoo & Conditioner Set $32.99

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

Are you ready to turn the volume up on your hair game?

This Thickening Vegan Collagen & Biotin Shampoo does more than just excite ailing strands. It's a hair-boosting anthem in a bottle, a volumizing shampoo and conditioner set that sings a tune of revitalization.

It’s also a PETA-certified, 100% vegan shampoo and conditioner set, making it the perfect match for a natural lifestyle. It steps up as a hair thickening shampoo, transforming your tresses from flat to fabulously full.

This powerhouse botanica-based formula also moonlights as a tea tree shampoo and conditioner, adding a soothing touch to your hair care routine. If a shampoo and conditioner for damaged hair is on your wishlist, this hair care set answers the call, helping to promote luscious length and oh-so-lovely locks.

Step into the spotlight with a game-changing thickening shampoo and conditioner – your hair's standing ovation awaits.

What makes this Lavender Lotion special?

  • Synergistic Set: A unique blend of Biotin and Vegan Collagen Complex promotes hair strength & prevents moisture loss.
  • Protect & Fortify: Biotin’s naturally occurring antioxidants help fight free radical damage & encourage more resilient hair.
  • Hold On To H2O: The Vegan Collagen Complex in this Thickening Shampoo and Conditioner helps hair retain its natural moisture.
  • Hair You Crave: An Argan Oil Shampoo and Conditioner is the fastest route to hair with weightless hydration & shine.
  • Root to Tip Reset: This Vegan Shampoo and Conditioner for Damaged Hair effectively balances hair, scalp and skin.
  • Fight The Flakes: Not just for stronger, fuller hair. Give flaky scalp much-needed relief with a Tea Tree Shampoo and Conditioner.
  • Soothe Sensitive Scalp: A unique blend of potent yet gentle botanicals combine to calm a stressed-out scalp.
  • Daily Aromatherapy: Pure Sicilian Lemon & Tea Tree Oils deliver a blissful scent & invigorating tingle to calm the senses.
  • Undo the Overdo: This Volumizing Shampoo and Conditioner set helps undo years of excessive coloring & sun exposure. 
  • Shine From Head To Toe:Tree to Tub’s body care, hair care, and facial skin care products enhance each other when used together!

What makes Tree to Tub products different?

Every single Tree to Tub product is produced with these important values in mind:

Gentle For All - Dry, sensitive, or allergy-prone skin, eczema, psoriasis, dermatitis, rosacea. You name it!

Skin-Friendly pH - Protect skin and allow its microbiome to flourish with naturally pH-balanced formulas.

Natural Fragrance - No sneaky synthetics or irritants. Just light, natural scents from pure essential oils and unscented products suitable for the most sensitive skin types.

Clean Ingredients - No Sulfates, SLS, Parabens, DEA/MEA, Gluten, or anything else you might find on a nasties list. Only the best, straight from Mother Nature.

Earth Friendly - Vegan, cruelty-free & nature-friendly formulas that come in recycled or recyclable packaging.

Conditioner: Sapindus Mukorossi (Wild Soapberry) Juice, Cetearyl Alcohol (From Coconut), Cetrimonium Chloride, Caprylyl Glycol & Dipropylene Glycol & Glyceryl Caprylate (From Coconut & Palm), Glyceryl Stearate (From Palm), Distearyldimonium Chloride, Biotin (Vitamin B7), Hydrolyzed Soy Protein & Sodium Benzoate (From Soy), Avena Strigosa (Black Oats) Seed Extract & Glycerin & Lecithin & Potassium Sorbate & Citric Acid, Argania Spinosa Kernel Oil (Organic Argan Oil), Citrus Limon (Lemon) Peel Oil, Polyquaternium-47, Melaleuca Alternifolia (Tea Tree) Leaf Oil, 1,3-Propanediol (From Palm), Citric Acid (From Corn).

Shampoo: Sapindus Mukorossi (Wild Soapberry) Juice, Cocamidopropyl Betaine (From Coconut), Sodium Lauroyl Sarcosinate (From Coconut & Palm), Decyl Glucoside (From Coconut & Corn), Sodium Lauryl Sulfoacetate (From Coconut & Palm), Caprylyl Glycol & Dipropylene Glycol & Glyceryl Caprylate (From Coconut & Palm), Biotin (Vitamin B7), Avena Strigosa (Black Oats) Seed Extract & Glycerin & Lecithin & Potassium Sorbate & Citric Acid, Hydrolyzed Soy Protein & Sodium Benzoate (From Soy), Tetrasodium Glutamate Diacetate, Argania Spinosa Kernel Oil (Organic Argan Oil), Polyquaternium-67, Hydrolyzed Jojoba Esters (From Jojoba Oil), 1,3-Propanediol (From Palm), Melaleuca Alternifolia (Tea Tree) Leaf Oil, Citric Acid (From Corn), Citrus Limon (Lemon) Peel Oil.

  1. Begin by cleansing your hair with Vegan Collagen & Biotin Shampoo for Damaged Hair to remove any buildup of dirt & oils on the hair and scalp.
  2. Twice a week, wash hair with Volumizing Biotin & Caffeine Shampoo for Thinning Hair to further increase volume, strength, and shine.
  3. Moisturize, de-tangle, and strengthen hair further with Vegan Collagen & Biotin Conditioner for Fuller Stronger Hair.

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