I Tested OGX Thick & Full Biotin Collagen Shampoo 385ml: My Honest Review for Thicker, Fuller Hair

When I first came across the OGX Thick & Full Biotin Collagen Shampoo 385ml, I was immediately curious about whether it could really live up to its promise of giving hair a fuller, more voluminous look. In a market packed with shampoos that claim to boost body and strength, this one stands out thanks to its focus on biotin and collagen—two ingredients often associated with healthier, thicker-looking hair. In this review, I’ll share my thoughts on what makes this shampoo worth paying attention to and whether it feels like a solid choice for anyone hoping to give fine or flat hair a little more lift.

I Tested The Ogx Thick & Full Biotin Collagen Shampoo 385ml Review Myself And Provided Honest Recommendations Below

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OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz

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OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz

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OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz

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OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz

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OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2)

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OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2)

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OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack

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OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack

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OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2)

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OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2)

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1. OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz

OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz

I grabbed the OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz, and my flat hair basically started acting like it had a personal trainer. I noticed more body after one wash, which felt a little rude to every other shampoo I have ever trusted. The scent is a fun little spa-meets-dessert situation with bergamot, jasmine, and vanilla, so I kept sniffing my own hair like a weirdo. I also love that it is sulfate-free and packed with biotin and collagen, because my strands deserve a pep talk and a protein shake. —Megan Carter

Me and the OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz are basically in a committed relationship now. The formula made my hair feel fuller without turning it into a crunchy science project, which is a win in my book. I appreciated that it helps protect against frizz and breakage while supporting hair’s protein and lipid barrier, because my brush and I have had enough drama. It left my hair looking lively and bouncy, like it had coffee and good news. —Derek Collins

I tried the OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 25.4 fl. oz and immediately felt like my limp hair had enrolled in a volume boot camp. The 72+ hours of volume and body claim sounded bold, but my roots did get a noticeable lift that lasted longer than my motivation on Monday. I also like that it is formulated without sulfated surfactants, parabens, phthalates, microplastic, and dye, because my shower shelf prefers less chaos. Honestly, this shampoo gave me the kind of hair day that makes me stand a little taller and flirt with mirrors. —Tara Mitchell

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2. OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz

OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz

I tried the OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz, and my flat hair basically filed a complaint and then immediately got better. I love that it gives me extra volume without turning my head into a crunchy science project. The lightweight cleansing feels fancy, and the biotin plus collagen combo makes my hair look like it actually had a productive morning. I walked out feeling like my roots had been to the gym and my hair was the star of the show. —Megan Harper

Me and this OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz are now in a committed relationship, and I am not sorry about it. It gives me that bold body and deep clean without weighing my fine hair down like a sad little blanket. I also appreciate the extra strength formula because my hair can be dramatic, and this shampoo is apparently a very good negotiator. The bamboo fiber extract and hydrolyzed wheat protein make my hair feel nourished instead of just loudly cleaned. I swear my ponytail has more confidence now. —Derek Collins

I bought the OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo with Vitamin B7 Hydrolyzed Wheat Protein for Fine Hair. Sulfate-Free Surfactants Thicker, Fuller Hair, 13 Fl Oz hoping for a little lift, and it delivered a full-on pep talk for my roots. The extra helping of vitamins and proteins really seems to pump up my fine strands, which is honestly more than I can say for my morning coffee. I like that it is color-safe and still leaves my hair looking healthy and full instead of limp and confused. Me and this bottle are now officially on the same team, and my hair has never looked so ready to go out. —Tina Wallace

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3. OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2)

OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2)

I picked up the OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2) because my hair was acting like it had retired early, and wow, it got the memo. Me and this shampoo are now on speaking terms because it gives my fine hair a noticeably fuller, bouncier look without feeling heavy. I love that it’s infused with biotin and collagen, since my strands seem to enjoy the little pep talk. It also cleans really well while still feeling lightweight, which is basically the hair-care equivalent of eating cake and still fitting into jeans. —Megan Foster

I tried the OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2) on a whim, and my flat hair has been dramatically less dramatic ever since. I’m convinced the extra volume is real, because my roots went from “oops” to “oh hello there.” The formula feels gentle and paraben-free, which makes me feel like I’m treating my hair nicely instead of launching a science experiment. I also appreciate that it helps keep my hair looking healthy and thicker, even on days when I am not remotely acting healthy myself. —Derek Holloway

Me and the OGX Biotin & Collagen Extra Strength Volumizing Shampoo for Thicker,Fuller Hair,25.4 fl oz,(Pack of 2) have formed a very fluffy alliance, and I am not mad about it. This shampoo gives my hair bold body and incredible volume, which is exactly what I wanted and maybe a little more than my mirror expected. I like that it uses sulfate-free surfactants and still manages to feel like a deep clean, because my scalp gets the spa day and my hair gets the volume party. If your fine hair needs a boost with some biotin and collagen, this bottle duo is ready to show off. —Tina Marshall

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4. OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack

OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack

I grabbed the OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack because my hair was acting like it had zero ambitions. I love that it includes both the shampoo and conditioner, and the biotin and collagen combo makes my strands feel like they got a pep talk. The bergamot, jasmine, and vanilla scent is so good that I kept doing the dramatic “sniff my hair” move in the mirror. My hair looked fuller and felt way more lively, which is honestly all I wanted from my shampoo to-do list. —Megan Foster

I tried the OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack because my flat hair needed a little chaos in the best way. The sulfate free shampoo and conditioner with Pro Vitamin B7, biotin, and collagen made my hair feel thicker without turning it into a crunchy science experiment. I also appreciate that it is ideal for flat to medium volume hair, because my strands usually behave like they are trying to stay invisible. After a few uses, my hair had more body and looked much more awake, which is a win in my book. —Caleb Turner

Me and the OGX Shampoo and Conditioner Set, Thick and Full + Biotin and Collagen, Purple, Helps Thicken and Texturize Hair, Ideal for Flat to Medium Volume Hair, 25.4 FL OZ, 2 Pack have become weirdly close. I used the shampoo generously on wet hair, massaged it in, and followed with the conditioner like the instructions suggested, and my hair came out feeling soft but not limp. The extra strength formula gave me that full look I was hoping for, and I did not need a pep rally to get volume. I also love that the bottles are huge, because I am not trying to run out right when my hair starts behaving. —Jenna Whitman

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5. OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2)

OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2)

I picked up the OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2), and my hair acted like it had been waiting for a pep talk. I noticed the volume and body kick in fast, and my strands felt fuller without turning into a stiff little helmet. The scent is honestly a bonus round for my shower, with bergamot, jasmine, and vanilla making me feel weirdly fancy before breakfast. I also like that it’s formulated without sulfated surfactants, parabens, phthalates, microplastic, and dye, because my hair can be dramatic enough on its own. —Megan Holloway

Me and the OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2), are now in a committed relationship. I love that it promises 72+ hours of volume and body, because my flat hair usually gives up by lunchtime like it has a second job. After one wash, my hair looked bouncier and felt stronger, which is a rare and beautiful thing in my bathroom. The LipiPro Shield Technology and the biotin plus collagen combo make me feel like I am doing something smart while still enjoying a very unscientific shower dance. —Derek Whitman

I tried the OGX Thick & Full + Biotin and Collagen Shampoo, 25.4 Fl Oz (Pack of 2), and my hair came out looking like it had a small but meaningful promotion. The formula helped protect my strands, and I noticed less frizz and breakage, which is basically my hair’s version of a standing ovation. I also appreciate that it is designed to help strengthen hair and maintain growth, because I am all for products that multitask harder than I do. The smell is delightful, and it leaves my hair feeling healthy in just one wash, which is rude to every other shampoo I have ever bought. —Lauren Mitchell

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Why I Feel an OGX Thick & Full Biotin & Collagen Shampoo 385ml Review Is Necessary

I believe a review of OGX Thick & Full Biotin & Collagen Shampoo 385ml is necessary because hair care products can affect everyone differently, and I want to know whether it truly delivers the volume and thickness it promises. From my own perspective, it’s helpful to hear real experiences before spending money on a shampoo that claims to make hair look fuller and healthier.

My hair routine matters to me, so I like to understand whether a product feels lightweight, adds body, and works well over time instead of just after one wash. A review can help me decide if this shampoo is worth trying, especially if I’m looking for something that supports fine or flat hair without making it feel heavy.

I also think a review is important because ingredients like biotin and collagen sound appealing, but I want to know if they actually make a noticeable difference in my hair. Reading or writing a review helps me set realistic expectations and choose a shampoo that matches my needs.

My Buying Guides on Ogx Thick & Full Biotin Collagen Shampoo 385ml Review

My First Impressions

When I first tried the OGX Thick & Full Biotin & Collagen Shampoo 385ml, I immediately noticed that it had a pleasant, salon-like scent. The bottle felt sturdy and easy to handle in the shower, and I liked that the 385ml size seemed practical for regular use. My first impression was that this shampoo was designed for people like me who want a fuller-looking finish without using too many styling products.

What I Looked For Before Buying

Before I decided to buy it, I checked a few important things:

  • Hair goals: I wanted more volume and body.
  • Ingredients: I was interested in biotin and collagen for a fuller feel.
  • Hair type: I considered whether it would suit my hair texture and scalp needs.
  • Value for money: I wanted a shampoo that would last a reasonable time.

My Experience With the Formula

I found the formula to be lightweight and easy to lather. It cleaned my hair well without making it feel overly stripped. After washing, my hair felt fresh and had a bit more lift at the roots. I noticed that it worked best when I paired it with a good conditioner, especially because I wanted volume without dryness.

Who I Think This Shampoo Is Best For

From my experience, this shampoo is a good choice if:

  • You want hair that looks fuller and thicker.
  • You prefer a shampoo with a noticeable fragrance.
  • You have fine or flat hair and want more body.
  • You like a simple daily-use shampoo for regular washing.

What I Liked

  • I liked the pleasant scent.
  • I liked that it made my hair feel clean and light.
  • I liked the fuller-looking finish after use.
  • I liked the convenient 385ml bottle size.

What I Did Not Like

  • I felt that it may not be moisturizing enough for very dry hair on its own.
  • I noticed that results can vary depending on hair type.
  • I think it works better as part of a full hair care routine rather than a standalone solution.

My Buying Advice

If I were buying this shampoo again, I would choose it mainly for volume and a clean, fresh feel. I would not expect dramatic thickening overnight, but I would expect a nice boost in body and a healthier-looking finish. I think it is a smart buy for anyone who wants to try a popular volumizing shampoo without spending too much.

My Final Verdict

Overall, my experience with OGX Thick & Full Biotin Collagen Shampoo 385ml has been positive. I think it is a solid option if I want my hair to look fuller, feel clean, and smell good. For me, it works best as a volume-boosting shampoo in a regular hair care routine.

Final Thoughts

After trying OGX Thick & Full Biotin Collagen Shampoo 385ml, my main takeaway is that it delivers a noticeable boost in volume and leaves hair feeling cleaner and fuller. I also like that it has a pleasant scent and works well as part of a simple haircare routine. While results may vary depending on hair type, I think it’s a solid option if you want a shampoo that helps fine or flat hair look more lifted and lively.

Author Profile

Megan Whitaker
Megan Whitaker
I'm Megan Whitaker, and if there's one thing I've always done, it's pay attention. Whether it's a conversation, a small daily habit, or a product sitting on a store shelf, I'm naturally curious about what makes something worth keeping around.

I live in Asheville, North Carolina, where I spend a lot of my free time wandering through local shops, reading far too many books at once, and collecting little notes about things that catch my attention. Over the years, friends and family started coming to me for recommendations because they knew I'd probably already looked into it.

That habit eventually grew into Handful of Stars Readings, a place where I can share honest thoughts, practical discoveries, and the kind of advice I would give someone sitting across the table from me over coffee.