Panthenol powder is pro-vitamin B5, a water-soluble cosmetic active that converts to vitamin B5 the moment it is absorbed into skin. It works in two ways at once: as a humectant, it draws moisture in and holds it there; as an emollient, it seals tiny cracks in the skin barrier and stops that moisture escaping. The result is softer, calmer, more resilient skin and hair. It suits every skin type, is exceptionally gentle (even on sensitive and compromised skin), and dissolves easily into lotions, serums, shampoos, and conditioners. If you are new to formulating with cosmetic actives, panthenol powder is one of the best places to start.
In this article
- What is panthenol powder?
- What does panthenol do for skin?
- Does panthenol work in hair care too?
- What is the difference between panthenol powder and panthenol liquid?
- How do you add panthenol powder to a formulation?
- What other actives pair well with panthenol?
- Frequently asked questions
What is panthenol powder?
Panthenol is the alcohol form of pantothenic acid, which belongs to the B vitamin family. You will also see it labelled as pro-vitamin B5, dexpanthenol, or simply vitamin B5 on product packaging (though that last name is technically a shorthand). The correct INCI name used on cosmetic ingredient lists is Panthenol.
The powder form sold for DIY cosmetic formulation is DL-panthenol: a fine white crystalline powder that is water-soluble, heat-stable, and compatible across a wide pH range. DL-panthenol is a blend of two mirror-image molecular forms (the D and L isomers). The body can only metabolise the D form, so DL-panthenol is roughly 50% biologically active. That said, it performs exceptionally well at standard usage rates and remains the most widely used form in cosmetic manufacturing worldwide, chosen for its reliability, stability, and practical price point.
Once applied to skin or hair, panthenol is rapidly converted to pantothenic acid (vitamin B5) within the tissue, where it gets to work on hydration and barrier repair.
What does panthenol do for skin?
Panthenol is a dual-action ingredient. In skincare formulations it delivers two complementary functions at once:
- As a humectant: it attracts water molecules from the environment and draws them into the upper layers of the skin, actively pulling hydration in from the outside.
- As an emollient: it fills micro-cracks and gaps in the skin's surface, smoothing texture and reducing transepidermal water loss (TEWL), which is the invisible evaporation of moisture out through the skin barrier.
Research referenced by Cetaphil shows that products containing as little as 1% panthenol can rapidly improve skin suppleness and hydration. Beyond moisture, panthenol carries anti-inflammatory properties that calm redness, soothe irritation from shaving or environmental stress, and support the natural healing of minor skin damage. For formulators making products for sensitive, dry, eczema-prone, or post-procedure skin, panthenol is one of the most practical and well-tolerated actives you can reach for.
It is compatible with virtually all other cosmetic ingredients and works across a wide pH range without needing special handling, which makes it genuinely easy to add to almost any water-based formulation.
Fine white DL-panthenol powder. Water-soluble, heat-stable, and sized for home formulators. Add to lotions, serums, conditioners, and shampoos at 0.5 to 5%.
Does panthenol work in hair care too?
Yes, and it shines in hair formulations. One of panthenol's most valued qualities in hair care is its ability to penetrate the hair shaft itself, rather than just coating the surface. Once inside the strand, it attracts and holds moisture, improving elasticity, reducing brittleness and static, and leaving hair noticeably softer and shinier after wash.
For shampoo bars, rinse-out conditioners, leave-in sprays, and deep hair masks, panthenol is a straightforward and effective active to include. Studies have also suggested it may support cell viability in scalp tissue, making it a useful addition to formulations targeting hair thinning or scalp dryness. It works for all hair types, though dry, damaged, colour-treated, and frizzy hair tend to respond most noticeably.
In rinse-out products like shampoos, a usage rate of 0.5 to 2% is standard. For leave-in conditioners and deep masks, you can work up to 5%, where the extended contact time allows panthenol to do more work on the strand before rinsing.
What is the difference between panthenol powder and panthenol liquid?
Both forms deliver panthenol to skin and hair, but they differ in chemistry, handling, and the right application. Here is a clear comparison:
| Feature | Panthenol Powder (DL) | Panthenol Liquid (D) |
|---|---|---|
| INCI name | Panthenol | Panthenol |
| Physical form | Fine white crystalline powder | Clear viscous liquid or gel |
| Active isomer | D and L isomers combined (approx. 50% biologically active D) | D isomer only (100% biologically active) |
| Dissolving | Dissolves best with gentle warming (around 40C) | Incorporates quickly at room temperature |
| Best applications | Lotions, conditioners, shampoo bars, masks, cleansers | Facial serums, toners, mists, premium leave-on products |
| Cost | More affordable per gram | Slightly higher cost for 100% D isomer |
| Who it suits | Most home formulators and small-batch production | Formulators prioritising highest potency in face care |
For most home formulators making lotions, conditioners, and body products, the powder form is the most practical and cost-effective choice. If you are formulating a premium facial serum and want the highest potency per gram with the easiest possible incorporation, panthenol liquid is the natural upgrade.
100% biologically active D-panthenol in liquid form. Ideal for facial serums, toners, and leave-on products where quick incorporation at room temperature matters.
How do you add panthenol powder to a formulation?
Panthenol powder is added to the water phase of your formulation, where it dissolves fully. It is heat-stable, so it can go straight into your heated water phase without any concern about degradation. If you are working cold process, gentle warming to around 40C (just below hand-hot) helps it dissolve faster. Powdered panthenol can be slow to incorporate at room temperature, so give it time and stir well rather than rushing.
In leave-on products (face creams, body lotions, leave-in hair treatments), keep your usage rate at 2% or below. Above that threshold, formulations can start to feel tacky on the skin. For rinse-out products like shampoos and conditioners, you have more flexibility to go higher, since the product washes away before any stickiness registers.
Here are usage rates by product type as a starting guide:
| Product Type | Recommended Usage Rate | Formulator Notes |
|---|---|---|
| Body lotion / face cream | 0.5% to 2% | Stay at or below 2% to avoid a tacky skin feel |
| Facial serum | 0.5% to 1% | Lower rate keeps the texture lightweight and fast-absorbing |
| Toner / facial mist | 0.5% to 1% | Keep rate modest to maintain clarity in the product |
| Shampoo / liquid cleanser | 0.5% to 2% | Add to the water phase before introducing surfactants |
| Rinse-out conditioner | 1% to 5% | Higher rates are fine as the product rinses away |
| Leave-in hair spray or mist | 1% to 3% | Stay conservative to avoid build-up on the hair shaft |
| Deep hair mask | 2% to 5% | Extended contact time allows maximum penetration |
| Nail and cuticle cream | 1% | Hydrates and helps strengthen brittle nails and cuticles |
What other cosmetic actives pair well with panthenol?
Panthenol is one of the most compatible actives in cosmetic formulation. It has no known incompatibilities at standard usage rates and plays well with virtually every other ingredient type. A few particularly strong pairings worth knowing about:
- Glycerine: both are humectants, and using them together creates layered, deeper-reaching moisture than either delivers alone. A very common and reliable pairing in body lotions and serums.
- Sodium hyaluronate (hyaluronic acid): hyaluronic acid works at different depths depending on molecular weight, and panthenol complements this by reinforcing the skin barrier at the surface. Together with glycerine, they form a strong three-way hydration system.
- Niacinamide (vitamin B3): panthenol soothes and hydrates while niacinamide targets pore appearance, uneven tone, and sebum balance. They stack cleanly in facial serums and toners with no negative interactions at normal usage rates.
- Allantoin: another skin-soothing, barrier-supportive active that complements panthenol's calming action beautifully in products for sensitive, reactive, or compromised skin.
If you are building a hydrating water serum from scratch, a reliable starting formula is: panthenol at 1%, sodium hyaluronate at 0.1 to 0.5%, niacinamide at 2 to 5%, and glycerine at 3 to 5% in a buffered water base. Simple, effective, and a great base to customise from there.
You can find Essential Oil Blends for Cosmetics and Soap Making in our blog if you want to go deeper on pairing actives for your next formulation.
Frequently asked questions
Is panthenol powder the same as vitamin B5?
Very close, but not exactly. Panthenol is the provitamin form of vitamin B5 (pantothenic acid). When applied to skin, the body converts panthenol into vitamin B5, where it becomes active. So calling panthenol "pro-vitamin B5" is accurate. You will sometimes see it simply called "vitamin B5" on product labels, which is a shorthand consumers recognise. The INCI name on cosmetic ingredient lists is Panthenol.
What is the difference between DL-panthenol and D-panthenol?
DL-panthenol (powder) is a blend of two mirror-image molecular forms. The body can only use the D isomer, so DL-panthenol is approximately 50% biologically active. D-panthenol (liquid) contains only the active D form, making it 100% biologically available at the same concentration. For most DIY applications, DL-panthenol powder delivers excellent, well-documented results at a more practical price. D-panthenol liquid is the choice when you want maximum potency and easy room-temperature handling in a premium face product.
Can I use panthenol powder in anhydrous (oil-based) formulations?
No. Panthenol powder is water-soluble and will not dissolve in oil-only formulations such as body butters, whipped balms, or anhydrous serums. It needs a water phase to incorporate properly. If you want to include it in a product that starts anhydrous, you would need to dissolve it in a small amount of water first and then emulsify the whole batch. For water-free products, leave it out, as it will sit undissolved and may cause grittiness.
Will panthenol make my lotion feel sticky?
It can, if you exceed around 2% in leave-on products. At usage rates between 0.5 and 2%, panthenol contributes a smooth, soft skin feel with no tackiness. The stickiness at higher concentrations is exactly why rinse-out products like conditioners can safely use panthenol up to 5% (the product washes off before the sensation registers), while leave-on products should stay at or below the 2% mark.
Is panthenol safe for sensitive skin and babies?
Yes. Panthenol is one of the best-tolerated cosmetic ingredients available. You may recognise it as the key active in Bepanthen nappy cream, which has been used in medical wound care and on newborn skin for decades. That speaks to how gentle and thoroughly studied this ingredient is. There are no known contraindications, and it is approved for cosmetic use by regulators in Australia and internationally. For formulators making products for babies, sensitive skin, or post-procedure care, panthenol is a reliable, first-choice active.
How should I store panthenol powder?
Store in a sealed container, away from direct light and moisture, at room temperature. Panthenol powder is stable under normal storage conditions, though it is best kept below 40C for long-term shelf life. Keep it dry: exposure to humidity can cause the powder to clump, though this does not affect efficacy, just ease of measuring. Most batches have a shelf life of two years from the manufacture date when stored correctly.
Ready to add panthenol to your next batch?
Soapmaid stocks both panthenol powder and panthenol liquid, sized for home formulators and small-batch production. Australia-wide shipping, with click-and-collect available from Springvale South, Victoria.
Shop Panthenol →Australian stock. Cosmetic-grade quality. No minimum order.