The Scalp Is Skin: Why Your Hair Routine Needs a Reset

We spend significant time and money on our facial skincare routine. Cleanser, toner, serum, moisturizer. We think carefully about ingredients, about pH, about what we are putting on our skin and why.

And then we wash our hair with a product full of sulfates, synthetic fragrance, and silicones, and wonder why our scalp is irritated, our hair is dry, and our shedding has increased.

The scalp is skin. It has the same needs as the skin on your face: a balanced pH, a healthy microbiome, nourishment from ingredients it can actually use, and protection from ingredients that disrupt its natural function. Most conventional hair products fail on every count.

What Sulfates Do to the Scalp

Sulfates are detergents. They are effective at removing oil and buildup, which is why they produce a satisfying lather. They are also effective at stripping the scalp's natural sebum, disrupting the acid mantle, and damaging the hair cuticle. The result is a scalp that overproduces oil to compensate, hair that becomes dependent on conditioning products to feel manageable, and a microbiome that is perpetually out of balance.

Removing sulfates from your routine often causes a transition period of 2 to 4 weeks as the scalp recalibrates. After that, most people find their scalp produces less oil, their hair is more manageable, and their shedding decreases.

What Synthetic Fragrance Does

Synthetic fragrance is one of the most common allergens in personal care products and one of the least regulated. A single fragrance ingredient can contain hundreds of undisclosed chemicals, many of which are known endocrine disruptors. On the scalp, synthetic fragrance contributes to irritation, sensitivity, and inflammation, the same inflammation that can accelerate hair loss.

Under Luna uses only natural aromatics from whole plants: cabreuva, clove, palmarosa, grapefruit, tulsi, cypress, sweet orange. These are not synthetic approximations. They are the plants themselves.

The Under Luna Approach

Under Luna formulas are built around whole-plant botanicals, garden-grown and foraged herbs, and skin-loving oils. They are pH-balanced to match the scalp's natural acid mantle, sulfate-free, and free from synthetic fragrance and fillers. The result is a hair routine that works with the scalp rather than against it.

The Tulsi Bloom Shampoo cleanses without stripping, formulated with tulsi, rosemary, horsetail, and mineral-rich herbs grown and foraged in the Pacific Northwest. For balanced, combination, and fluctuating scalps, including those navigating postpartum or hormonal changes.

The Deep Magic Hair and Scalp Serum nourishes dry scalps, softens frizz, protects ends, and enhances natural texture without heaviness. Use it as a pre-wash scalp treatment, a damp-hair protectant, or a dry-hair finishing oil.

The All Things Face and Body Oil extends the Under Luna philosophy to the skin: lightweight, non-comedogenic, formulated with rich botanical oils for lasting hydration with a soft, luminous finish. Use it as a daily face oil, body moisturizer, makeup remover, or anywhere skin needs extra nourishment.

Explore the full Under Luna collection.

Frequently Asked Questions

Why is the scalp considered skin?
The scalp has the same structure as facial skin: a microbiome, an acid mantle, sebaceous glands, and hair follicles. It responds to ingredients the same way facial skin does, and it suffers from the same disruptions caused by harsh detergents and synthetic additives.

What happens when I switch to sulfate-free shampoo?
Most people experience a 2 to 4 week transition period as the scalp recalibrates. After that, oil production typically normalizes, hair becomes more manageable, and shedding often decreases.

Is Under Luna suitable for color-treated hair?
Yes. Sulfate-free, pH-balanced formulas are gentler on color-treated hair than conventional shampoos.

Can Under Luna help with postpartum hair loss?
Under Luna formulas are specifically designed for those navigating postpartum hair loss and hormonal scalp changes. The botanical actives support scalp health and follicle function without synthetic shortcuts.

What is the All Things Oil used for?
It is a multi-use face and body oil that works as a daily moisturizer, makeup remover, body oil, brow smoother, and dry patch treatment. Lightweight and non-comedogenic.

Are Under Luna products vegan?
Yes. All formulas are vegan and free from synthetic fragrance, sulfates, and fillers.