VANIDOX Carbonic Acid Shampoo for Thinning Hair 16 fl oz – Sulfate-Free, Biotin & Tea Tree Scalp Exfoliator

VANIDOX Carbonic Acid Shampoo is a sulfate-free cleanser formulated with carbonic acid, biotin, tea tree oil and DHT-supporting ingredients to refresh the scalp, unclog follicles, and help promote thicker-looking hair for men and women.

This salon-style shampoo combines carbonic acid technology with botanicals and nourishing oils to lightly exfoliate the scalp, reduce residue, and support the conditions that contribute to fuller-looking hair. Made in the USA, the 16 fl oz formula is free from sulfates and parabens and is designed for routine use on oily, sensitive, or thinning-prone scalps. It pairs with a keratin-rich conditioner for volume and long-term manageability.

How does carbonic acid work on the scalp?

Carbonic acid helps loosen sebum, product buildup, and dead skin from follicles without harsh scrubbing. By creating a micro-exfoliating environment, it can improve scalp surface condition and make it easier for active ingredients to reach the hair root area.

• Micro-exfoliates to clear clogged pores and residue
• Creates better contact for nutrients like biotin and tea tree
• Balances moisture without stripping natural oils

Will this shampoo help hair look thicker?

The formula combines carbonic acid with biotin, keratin-targeting ingredients, and natural oils to increase hair body and shine. While no shampoo can change genetics, regular use can improve hair texture, reduce limpness, and create the appearance of fuller hair.

• Biotin and keratin-supporting actives strengthen strands
• Argan, coconut and avocado oils add weightless volume and gloss
• Designed to reduce limp, oily buildup that flattens hair

Is this safe for sensitive or colored hair?

VANIDOX is formulated without sulfates and parabens and avoids aggressive surfactants, making it gentler on sensitive scalps and color-treated hair. Always patch-test if you have highly reactive skin and follow with a conditioner to maintain moisture balance.

• Sulfate-free to reduce fading and irritation risk
• Includes soothing tea tree and moisturizing oils for comfort
• Suitable for routine use; pair with conditioner for best results

How should I use it in my routine?

Apply to wet hair, massage into the scalp for 60–90 seconds to allow the carbonic acid to work, then rinse thoroughly. For optimal results, use 2–3 times weekly or as needed, alternating with your preferred gentle cleanser and following with a keratin-rich conditioner.

• Massage thoroughly to lift buildup and improve circulation
• Rinse well and follow with a hydrating conditioner
• Use consistently for visible improvements in hair body and scalp clarity

Who is this for: VANIDOX Carbonic Acid Shampoo is geared toward men and women seeking a professional, sulfate-free scalp treatment that reduces buildup, supports hair thickness appearance, and refreshes oily or sensitive scalps. It suits people who want a science-forward daily or weekly shampoo that pairs easily with volumizing conditioners and styling routines. Avoid use if you have open wounds or known sensitivities to listed botanicals; consult a dermatologist for severe scalp conditions.

Ingredients

Biotin, Collagen, Argan Oil, Peppermint Oil, Saw Palmeto, Vitamin E, Keratin, Aloe Vera, Tea tree