Can You Change Your Hair Texture? What Actually Works

Can you change your hair texture? Not permanently, and not with a hair transplant. Texture is decided by the shape of the follicle that grows the hair, and that shape is genetic. A transplant moves follicles; it does not redesign them.

What can be changed is the fibre after it has grown — which is what relaxers, perms and heat do, at a cost. And there is early research aimed at changing the follicle itself, which is worth knowing about precisely because it is not yet a treatment you can buy.

The short answer

• Texture comes from follicle shape. A curved follicle produces a curved fibre; a round, straight one produces straight hair.
• Transplanted hair keeps its donor characteristics. Curly donor hair grows curly in the recipient area, and vice versa.
• Chemical and thermal treatments change the fibre, not the follicle. New growth arrives with the original texture.
• Changing texture at the follicle is research, not practice. A pilot study has shown it is possible; it is not a product.

What decides your hair texture

The fibre is shaped as it forms, inside the follicle. The layer that does most of that shaping is the inner root sheath, which acts as a mould around the growing hair.

A 2024 study compared the transcriptomes of curly and straight hair and found 85 genes transcribed significantly differently between them, none previously associated with the trait. When the most variable of those genes were mapped in scalp samples, they localised to the inner root sheath — confirming that this cell layer is where fibre shape is decided.

That is why texture is not something the scalp imposes. It travels with the follicle.

Does a hair transplant change hair texture?

No, and the reason is the founding principle of the operation: donor dominance. A transplanted follicle keeps the properties it had at its original site, including its resistance to DHT — which is the whole reason transplants work at all.

Those properties include appearance. A 2008 report documented donor dominance in action for pigmentation specifically: transplanted hairs retained their original colour long term in the recipient area. The same principle governs calibre and curl.

So if your donor hair is coarse and wavy, that is what will grow in the transplanted area. Someone with tightly curled hair will get tightly curled hair — the surgical implications of which are covered separately under curly hair transplant and Afro-type hair transplant, because curved follicles are harder to extract without damage — which is largely a question of punch diameter.

Why patients think their texture changed

This is a common observation after surgery, and there are four real explanations that do not involve the follicle changing.

The second and third are worth expanding. The recipient area in pattern loss is full of miniaturised hair — thinner and shorter than it once was. Transplanted hair from the safe donor area has not miniaturised, so it genuinely is thicker than what was there. Nothing changed texture; healthy hair simply arrived among unhealthy hair.

And donor hair is not uniform. Measurement of the donor zone shows hair diameter decreasing from the superior to the inferior part, so grafts taken from different heights differ slightly. The donor area page covers how that is planned around.

The timeline behind the first row is on growth stages.

The one case where texture genuinely differs

Donor dominance cuts both ways. If the graft does not come from your scalp, it will not look like scalp hair.

Beard hair is coarser, often curlier, and has a different growth cycle. Body hair is finer and shorter-growing. Both are used when scalp donor supply is exhausted, and both are placed deliberately — usually in the mid-scalp or crown rather than the hairline, precisely because their texture reads differently.

This is the exception that proves the rule: texture changed because the source changed, not because the recipient site altered anything.

What actually changes hair texture

Everything that works acts on the fibre after it has left the follicle.

• Chemical relaxing and perming break and reform the bonds that hold the fibre’s shape. The change is permanent for that length of hair and does nothing to what grows next.
• Heat styling does the same temporarily, and repeatedly doing it is a common cause of hair that feels like straw.
• Damage changes how hair behaves without changing what it is — a rough, porous fibre reads as a different texture.

None of these reaches the follicle, which is why the roots always come through as they were.

Can texture be changed at the follicle?

This is the interesting part, and the honest framing matters.

The same 2024 study screened a chemical library for molecules that could modulate the genes it identified, then ran a split-scalp, placebo-controlled pilot in 33 volunteers. Among those assessed for curvature, 16 of 19 showed a change in fibre curvature by the end of the study; 8 of 14 showed colour changes.

That is a genuine proof of concept and the first demonstration that the trait can be modulated from the follicle. It is also a single-centre pilot with small numbers, described by its authors as a first step towards future cosmetics. There is no product, no long-term data, and nothing a clinic can offer you. Anyone selling texture change today is selling fibre treatment.

When texture changes on its own

Texture is not entirely fixed across a lifetime. It commonly shifts with age, and it can change after chemotherapy, with some medications, and around major hormonal changes such as pregnancy. These changes are usually gradual and partial.

A sudden change in the texture of your hair alongside shedding is a different matter, and is worth investigating rather than styling around — thyroid disease and iron deficiency both affect the fibre as well as the shedding rate.

Frequently asked questions

Can you change your hair texture permanently?

Not at the root. Relaxers and perms permanently change the hair that already exists, but new growth arrives with your original texture because the follicle is unchanged.

Does a hair transplant change your hair texture?

No. Transplanted follicles keep their donor characteristics — the same principle that keeps them resistant to hair loss. Curly donor hair grows curly in the recipient area.

Why is my transplanted hair curly?

Regrowing hair is often curlier or kinkier at first and settles over the following months. If it stays curly, it is because your donor hair is curly, or because beard or body hair was used.

Why does my transplanted hair feel thicker than my other hair?

Because it is. Hair in a thinning recipient area has miniaturised; donor hair has not. The contrast is between healthy and miniaturised hair, not a texture change.

Can hair texture change with age?

Yes, gradually. It can also change after chemotherapy, with certain medications, and around hormonal shifts. A sudden change with shedding is worth investigating.

Will beard hair look different on my scalp?

Yes. Beard hair is coarser and often curlier, which is why it is normally placed in the mid-scalp or crown rather than the hairline.

Is there a treatment that changes hair texture at the root?

Not on the market. A 2024 split-scalp pilot in 33 volunteers changed fibre curvature in 16 of 19 assessed participants, which is a proof of concept rather than a product.

References

• Matamá T, Costa C, Fernandes B, Araújo R, et al. Changing human hair fibre colour and shape from the follicle. J Adv Res. 2024;64:45–65. PMID 37967812. pubmed.ncbi.nlm.nih.gov
• Dinh HV, Sinclair RD, Martinick J. Donor site dominance in action: transplanted hairs retain their original pigmentation long term. Dermatol Surg. 2008;34(8):1108–1111. PMID 18513301. pubmed.ncbi.nlm.nih.gov
• Yun SI, Kim MS, Lee HJ, et al. Hair Characteristics of the Occipital Scalp. Arch Plast Surg. 2017;44(4):332–336. PMID 28728330. pubmed.ncbi.nlm.nih.gov
• Chouhan K, Roga G, Kumar A, Gupta J. Approach to Hair Transplantation in Advanced Grade Baldness by Follicular Unit Extraction. J Cutan Aesthet Surg. 2019;12(1):31–35. PMID 31057266. pubmed.ncbi.nlm.nih.gov

In short

Can you change your hair texture? Not at the root, and not with surgery. Fibre shape is moulded in the inner root sheath, where a 2024 study found 85 genes transcribed differently between curly and straight hair — and transplanted follicles carry their own properties with them, which is why donor dominance keeps transplanted hair the colour and curl it always was. Relaxers, perms and heat change the hair you already have and nothing that grows after. The one situation where texture genuinely differs is when the graft came from your beard or body rather than your scalp. Research has now changed curvature from the follicle in a small placebo-controlled pilot, but that is a first step, not a treatment.

If your transplanted hair looks or feels different from what you expected, send us photographs — in most cases the explanation is the stage of regrowth rather than the hair itself. What the procedure involves is set out on hair transplant in Turkey.