Find Your Flow

NATURE MADE. No Dispensary Required.

Let life flow with every hit. Pure, water-crafted THCA shipped right to your door.

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THCA Live Rosin
Cake Mintz (Select Wash) - Rosslyn Direct

THCA Live Rosin

THCA Rosin Vapes
Garlic Oreos Disposable (.5g) - Rosslyn Direct

THCA Rosin Vapes

THCA Flower
Rainbow Pushpop THCA Flower - Rosslyn Direct

THCA Flower

Big Wave Jars - 5g
Poochies Papaya (Select Wash) - 5g - Rosslyn Direct

Big Wave Jars - 5g

THCA Gummies
Wave Gummies - Berry Blast (100mg) - Rosslyn Direct

THCA Gummies

New Waves

Bundles

Lab Tested

All our THCA products are lab tested for potency and purity

Made with water

Our THCA products are made only with chilled water, heat, and pressure

Customer Service

We treat our customers like family, and we ensure we are there

THCA Live Rosin

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Risen From Water

Frozen Bananas (Craft Wash) - 5g - Rosslyn Direct

What makes Rosslyn Different?

Rosslyn Direct stands apart from Simply Mary, Crysp, Arete, and Hello Mary because we are built around solventless THCa rosin and THCa flower only, not a generic mix of hemp products.

When you buy THCa rosin online from Rosslyn Direct, you get a curated menu of clean cold cure THCa rosin, single source THCa flower, and small batch washes organized into Select Wash, Craft Wash, Reserve, and Ultra Reserve so you always know the level of quality and rarity. While other brands spread their focus, Rosslyn Direct is dedicated to solventless purity, transparent sourcing, and a tight feedback loop with our community, making us a trusted place to buy premium THCa rosin and THCa flower online.

LEARN MORE

Questions you probably have

What is THCA and how is it different from THC?

THCA is the raw, non-psychoactive form of THC found in cannabis. When heated (like in a dab rig or vape), it converts to THC and becomes active. Our rosin is high in THCA and remains non-psychoactive until activated by heat.

What makes Rosslyn Direct different?

We produce small-batch, solventless THCA rosin and vapes—no solvents, no shortcuts. Our products are shipped cold and always third-party tested for purity and compliance.

How should I store my rosin or vape?

Store your products in a cool, dark place. For best results and maximum terpene retention, refrigerate your rosin immediately after delivery.

Where do you ship?

We ship to most U.S. states that allow hemp-derived THCA. We do not ship to Arkansas, Idaho, Minnesota, Mississippi, or Hawaii. Orders from restricted states will be canceled and refunded.

Do You offer bulk or wholesale?

Yes! We offer both, but please reach out by email to hello@rosslyn.direct

When will I get my order?

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location. We work to get orders that are placed before 2pm EST out same day, and recieved after they will go out next day.

How long does shipping take?

Orders before 2 PM EST ship same day (Mon–Fri)

Priority: 1–3 business days

Ground: 3–5 business days
You’ll get tracking info once your order ships.

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