Beauty · Hair care · Honest review
In 2022, I walked into a salon asking for a 90s layered haircut — the kind with volume, movement, and face-framing layers. The kind that looks effortless but took a decade of runway shows to perfect.
I left the salon with a chunk of hair missing, like it had been bitten off, and I only noticed when I washed it at home two days later. I had to go back, and they ended up giving me a long bob haircut. I’d had long hair my entire life. It was part of how I recognized myself. And in about 45 minutes, it was gone.
Then I went home and started researching how fast hair actually grows. And I found it, The Oil That Finally Grew My Hair Back.
(The answer, if you’re curious and devastated: about half an inch per month. Which means growing back a significant length takes years. Years.)
The Problem With My Hair Beyond the Cut
Here’s the thing: my hair was already not easy to work with before the haircut made everything worse.
My hair is naturally frizzy. Like, genuinely frizzy — not the kind that a little serum tames, but the kind that dries into a cloud shape if I let it air dry and requires a full blowout every time I want it to look like hair and not a 1980s perm. It dries fast, which sounds like a plus until you realize it means it also loses moisture fast, which means it’s prone to breakage, and breakage means the length I was desperately trying to grow back kept disappearing at the ends.
I was in a cycle: grow half an inch, lose it to breakage. Grow half an inch, lose it to breakage.
The Oil That Finally Grew My Hair Back
About a year after the haircut, still nowhere near the length I wanted, I started looking for something that would help with the breakage specifically. Not a miracle growth serum — I’d learned my lesson about miracle claims — but something that would make my hair strong enough to actually keep the length I was growing.
A friend mentioned she’d been using biotin oil and noticed less shedding. I was skeptical, but I was also desperate enough to try a $10 bottle, so I picked up the Difeel Biotin Premium Hair Oil and committed to using it consistently for at least three months before deciding if it worked.
That was about three years ago. I’m still using it.
What Actually Happened (How my hair grew)
Month 1: Honestly, not much visible. My hair felt softer after I washed it — genuinely softer, not product-coated — and my scalp seemed to like it. No greasiness, no buildup. But in terms of growth or breakage? Too early to tell.
Month 2: Less hair in my brush. This was the first real signal. My hair is fine and frizzy, which means it breaks easily — and I’d gotten so used to pulling a concerning amount out of my brush that I’d stopped thinking it was abnormal. Seeing less was noticeable.
Month 3: The ends started feeling less brittle. This matters for frizzy hair specifically because a lot of the frizz and the “esponjado” look comes from damaged, dry ends that have lost their shape. Mine started feeling smoother, which made blowouts easier and the result lasted longer.
Months 4–6: Actual length. Not dramatic, not Instagram-transformation, but real. My hair is visibly longer than it was six months ago — and more importantly, I’m keeping the length because it’s not breaking off at the same rate.
What I Love About It
- The breakage reduction is real and significant for my hair type
- My blowouts last longer — my hair holds the smoothness better the day after
- Adds a natural shine, which frizzy hair desperately needs
- Affordable and lasts forever because you use so little
- Simple to use — no complicated process, no 10-step routine
What I Don’t Love
- The dropper is imprecise and I’ve definitely wasted product
- When I first started I used it every day thinking more would mean faster results. My hair felt weighed down and greasy. Less is genuinely more — 2 to 3 times a week maximum
- It does not eliminate frizz. My hair is still frizzy. I still need to do a brushing every time I want it to look smooth. The oil helps with breakage and health — it doesn’t change your hair texture
- Results require patience. If you’re three weeks in and nothing has changed, that’s normal. This is a months-long investment, not a weekend fix
How I Use It
I keep it simple because I know myself — if a routine has more than four steps I’ll abandon it:
- Apply 4–5 drops to my scalp, focusing on the areas where I notice the most breakage
- Massage gently for 2–3 minutes — this step actually matters, don’t skip it
- Leave it on overnight (I do this the night before a wash day)
- Wash normally in the morning
I use it 2 to 3 times a week. On weeks where I’ve done it daily, my hair felt heavy. The frequency matters.
The Honest Part
I want to be clear about something: I can’t promise this oil will work the same way for you.
My hair is frizzy, fine, and prone to breakage — biotin oil addresses exactly those issues. If your hair is thick and oily, your experience might be completely different.
What I can tell you is that for the specific problem I had — hair that was breaking faster than it was growing, after a bad cut that forced me to start from scratch — this was the thing that actually helped. Not a shampoo, not a mask, not biotin supplements. This oil, used consistently over months.
I’m not back to the length I had before 2022. But I’m getting there. And for the first time since that salon appointment, it actually feels like I’m making progress.
→ Difeel Biotin Premium Hair Oil on Amazon
Affiliate disclosure: this post contains affiliate links. If you purchase through my link I may earn a small commission, at no extra cost to you. I only recommend products I’ve personally used and genuinely like.
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