Posted by: Danielle

So I just got finished washing my hair and putting conditioner in it, and one thing that I noticed when using the biotin and collagen shampoo and conditioner is that my hair felt really thin. I’m not sure if this is how my hair is supposed to feel, but it definitely caught my attention.

When I use it, the smell is absolutely fantastic, so I can’t complain there — but my issue is that I’m not sure if this product is actually helping my hair or just coating it temporarily. Has anyone else experienced their hair feeling softer yet noticeably thinner after using this conditioner?

Whenever I use other shampoos or conditioners, my hair usually feels thicker and fuller after rinsing. But with this biotin and collagen combination, it almost feels like my hair is thinning out right after washing and conditioning.

If anyone out there has had similar results, please share what happened or any tips you might have. Maybe it’s normal? Maybe there’s something I’m missing? I’d really like to know if I should keep using it or switch to something else. Feel free to add to this post and give your experiences or advice to help others who might be dealing with the same thing.

DR. L. Morgan Voice 🎙

Hi Danielle, your observation is actually quite common when it comes to products like biotin and collagen conditioners, especially depending on your hair type and what kind of shampoo you use before conditioning.

Here’s what might be happening:

• Temporary softening effect: Biotin and collagen products often contain smoothing agents (like silicones, proteins, or certain oils) that can make the hair shaft feel silkier. While that’s a good thing for smoothness, it can also make the strands feel thinner because they lose some of that coarse texture you’re used to.
• Protein overload: If your hair is already healthy or low-porosity, the added biotin and collagen may cause the strands to stiffen slightly after repeated use, which can create a feeling of weakness or thinness.
• Cleansing strength: Some biotin shampoos are stronger in cleansing than typical moisturizing formulas, so if they strip too much natural oil, your hair might feel lighter or less dense after rinsing.

What you can do:

1. Try alternating it with a moisturizing conditioner — one that focuses on hydration rather than protein or collagen — to balance out your routine.
2. Make sure you’re rinsing thoroughly. Any leftover residue can weigh hair down and make it feel limp.
3. If your hair feels too soft or fragile after use, consider applying a leave-in conditioner or lightweight oil (like argan or jojoba) after washing to restore balance and thickness.
4. If the problem continues, test another biotin-free conditioner for a week and compare the results.

Biotin and collagen formulas can work wonders for some, but they’re not ideal for everyone — especially if your hair is already fine or doesn’t need a protein boost. It’s not necessarily a sign of damage; it’s more about finding the right match for your specific texture and needs.

Dexter B. Voice 🎙

✅ What to Try / What I Recommend

• Alternate with a moisturizing or lightweight conditioner
  Use the biotin & collagen product only part of the time, and mix in a gentle, hydrating formula (with no heavy silicones or proteins) to reset your hair.
• Use a clarifying shampoo periodically
  Once every 1–2 weeks, use a mild clarifier to remove buildup and reset your hair’s baseline.
• Apply conditioner on damp — not dripping — hair
  After shampooing, gently squeeze out excess water. Then apply your conditioner from mid-lengths to ends. That way the formula can absorb better instead of sliding off.
• Rinse thoroughly (cool to lukewarm water)
  A thorough rinse helps avoid leftover residue. Finish with a cool rinse to help seal the cuticle.
• Use a light leave-in or lightweight oil
  After rinsing, you can apply a very small amount of a light leave-in treatment or lightweight oil (like argan, jojoba) to restore body and prevent limpness.
• Try “protein-free” or “low-protein” conditioners for a test period
  Use one for a week or so and see how your hair feels by comparison.
• Check your overall hair care regimen
  Look at your styling tools, frequency of shampooing, whether you use heat protection, etc. Sometimes the issue isn’t just the conditioner but how all the pieces fit together.
• Patch test / strand test
  Try the biotin & collagen product on just a few strands or one section of hair. Compare how that section feels vs. the rest of your hair.