NRI Botanical Lab · Stovehouse,

Botanicals and oil, double maceration. 

Limited availability. Double macerated botanical oils including key essentials and a rotating selection of destination-sourced botanicals. Each one is plant material and carrier oil, and only that.

The process

Two full macerations of the same botanical for a more potent product.

Most infused oils come from one maceration cycle: herb into oil, heat, strain, done. NRI oils go through double maceration, meaning the strained oil is loaded back with a full infusion of fresh botanical material and the process begins again. The oil you see in the bottle has extracted its potency from that two full batches of the plant. The difference in color, viscosity, and potency is substantial.

Carrier oils are selected to match each botanical's character and intended use. Jojoba for botanicals that belong on the face and scalp. Apricot kernel for its affinity with skin-repairing herbs. Sunflower for warm, all-purpose application. The carrier selection is also part of the efficacy.

Calendula infused oil
Calendula in apricot kernel and sunflower. Warm, golden, and genuinely useful. This is the first oil we made; it's also the one that never leaves the shelf.
Core collection

In stock year-round

Botanicals selected for their track record, sourced for quality, made here at Stovehouse. These are on the shelf as long as the harvest holds.

Calendula
Apricot Kernel

Warm, golden, and always useful. Body, face, dry skin, anything that needs soothing and can not wait.

Lavender
Grapeseed

Not lavender essential oil. The whole flower, slowly drawn into jojoba. More subtle than the EO. More skin-compatible.

German Chamomile
Jojoba

Apple-like aroma, perfect for sensitive skin, reactive skin, and skin that has been through it all. Universally beneficial. 

Rose Petal
Jojoba

Fragrant, hydrating, and made with real rose petals. For the face, décolleté, or even dry cuticles. 

Rosemary
Apricot Kernel

The obvious choice for the scalp. Also a warming massage oil for tired legs and tight shoulders. The is one you'll use as-is and replace.

Lemon Balm
Sunflower

Bright, slightly herbaceous, lighter than most of the collection. Body oil, pulse points, anything you want to carry through the afternoon.

Hibiscus
Sunflower

Deep red-tinted, antioxidant-dense. The whole dried flower, extracted slowly. Face and body.

Plantain
Grapeseed

The backyard herb with a long history of skin use. Cooling, soothing, and deeply practical. Body and spot application.

Vigne rouge red vine leaf from France
Single origin collections include plants such as vigne rouge from Dr. Cavanaugh's sourcing trip to the Bordeaux region. Only 8 bottles from the entire batch. If you are here when these are available, you don't want to miss out.
Single origin

Unique locations. Seasonal ingredients. Limited production. Dr. Cavanaugh's personal favorites.

Single origin collections come from Dr. Cavanaugh's personal sourcing trips, infused from botanicals she personally brought home from small farms or unique growers. When it is gone, it is gone. 

Single Origin
Roman Chamomile
Apricot Kernel
Paris · Summer 2026

Sourced from Paris, summer harvest. Lighter and more floral than German chamomile. Fragrant, soothing, and absolutely useful for just about any skin condition.

Single Origin
Tilleul
Grapeseed
Loire Valley · Summer 2026

Linden blossom from the Loire Valley. Soft, slightly honeyed, calming without being sweet. One of the more quietly extraordinary botanicals in the collection.

Single Origin · Very Limited
Vigne Rouge
Grapeseed
Bordeaux Region · Summer 2026

Red vine leaf from France. Roughly 8 bottles from the entire batch. Antioxidant-dense, slightly astringent. If you are here when it's available, that is the one you want.

Before you buy

A few things worth knowing.

These are infused oils, not essential oils.

Essential oils are steam-distilled concentrates. Infused oils are carrier oils that have absorbed botanical compounds through slow maceration. They are gentler, more skin-compatible, and intended for direct application. No dilution required.

What does double maceration actually mean?

The oil goes through two full rounds of botanical extraction with fresh plant material each time. Most products on the market are single-pass. The difference is visible in the color and in how the oil performs on skin.

Shelf life and storage.

12 months from the batch date on the label. Store away from heat and direct light. The cobalt glass is doing work. Let it do it.

Where do the botanicals come from?

Domestic botanicals are sourced from regional growers, and direct farm relationships. Single-origin batches are sourced from specific international harvests, noted on each label.

Also at the Botanical Lab

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Ready to shop?

The full collection is available online and in the Lab at Stovehouse.

Shop infused oils