Sublingual Use: How It Works and Why It’s Effective
Sublingual use (from Latin sub — under, lingua — tongue) is a method of delivering active substances through the oral mucosa, particularly under the tongue. This approach is considered one of the fastest and most effective, as it allows substances to enter the bloodstream while bypassing the digestive system.
What makes this method especially powerful is that it works through two complementary mechanisms.
Two Key Mechanisms of Sublingual Action
1. Dissolution and Absorption Through the Oral Mucosa
The first mechanism involves the gradual dissolution of the product in the mouth. As it dissolves, active components slowly penetrate the mucous membrane.
The oral mucosa contains a dense network of capillaries located very close to the surface, allowing active molecules to enter the bloodstream quickly and efficiently.
During this process:
The gastrointestinal tract is bypassed — substances enter systemic circulation directly, without first-pass liver metabolism
The onset of action is faster than with tablets or capsules
Bioavailability is preserved — essential oils are not degraded by gastric juices
This is particularly important for sensitive active compounds such as essential oils.
2. Absorption Under the Tongue (Classical Sublingual Pathway)
The second mechanism is direct absorption under the tongue.
This area is one of the most permeable in the entire oral cavity. The mucosa here is thinner, and blood vessels are positioned extremely close to the surface.
This ensures:
Faster delivery of active substances into the bloodstream
An almost immediate onset of action
High effectiveness even at low doses
Sublingual use, therefore, is not just about placing a product “under the tongue” — it is a comprehensive processcombining gradual dissolution with rapid localized absorption.
How Seda+ Lozenges Work: Mechanism of Action
The effectiveness of Seda+ lozenges is based on a combination of two powerful mechanisms:
sublingual absorption and retronasal aromatherapy.
1. Sublingual Absorption
As the lozenge dissolves, active molecules of essential oils (such as chamazulene from blue tansy or valeric acid from valerian):
Enter the bloodstream directly
Act faster than traditional dosage forms
Retain their natural structure and potency
This allows for a fast and noticeable effect without burdening the digestive system.
2. Retronasal Aromatherapy
At the same time, another mechanism is activated.
During dissolution, volatile molecules of essential oils travel through the nasopharynx to the olfactory receptors. This creates a direct connection with the brain’s limbic system — the center of emotions and memory.
As a result:
The amygdala and hippocampus are activated
The brain receives a signal of safety
Cortisol levels decrease
Background anxiety is reduced
Aromas such as mandarin and Roman chamomile work especially gently, yet deeply — influencing the emotional state.
3. Influence on Neurotransmitters
Essential oil components in Seda+ interact with GABA receptors — the primary inhibitory system of the nervous system.
This helps to:
Reduce excessive neuronal excitation
Slow down intrusive thoughts
Prepare the body for rest
Support natural emotional recovery processes
A Dual-Action Approach for Body and Mind
Sublingual use is a modern and highly effective delivery method that works in two directions simultaneously:
gradual absorption through the oral mucosa
rapid uptake under the tongue
When combined with retronasal aromatherapy and neurotransmitter modulation — as in Seda+ lozenges — it creates a comprehensive effect, supporting both physiological balance and emotional well-being.