diff --git a/src/ifcopenshell-python/ifcopenshell/api/material/add_constituent.py b/src/ifcopenshell-python/ifcopenshell/api/material/add_constituent.py
index 046710d557..3a2dad4ba2 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/material/add_constituent.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/material/add_constituent.py
@@ -16,10 +16,14 @@
 # You should have received a copy of the GNU Lesser General Public License
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 import ifcopenshell
+from typing import Optional
 
 
 def add_constituent(
-    file: ifcopenshell.file, constituent_set: ifcopenshell.entity_instance, material: ifcopenshell.entity_instance
+    file: ifcopenshell.file,
+    constituent_set: ifcopenshell.entity_instance,
+    material: ifcopenshell.entity_instance,
+    name: Optional[str] = None,
 ) -> ifcopenshell.entity_instance:
     """Adds a new constituent to a constituent set
 
@@ -40,11 +44,9 @@ def add_constituent(
         constituent is part of. The constituent set represents a group of
         constituents. See ifcopenshell.api.material.add_material_set for
         information on how to add a constituent set.
-    :type constituent_set: ifcopenshell.entity_instance
     :param material: The IfcMaterial that the constituent is made out of.
-    :type material: ifcopenshell.entity_instance
+    :param name: An optional name of the constituent.
     :return: The newly created IfcMaterialConstituent
-    :rtype: ifcopenshell.entity_instance
 
     Example:
 
@@ -71,9 +73,9 @@ def add_constituent(
 
         # Now let's use those materials as two constituents in our set.
         ifcopenshell.api.material.add_constituent(model,
-            constituent_set=material_set, material=aluminium)
+            constituent_set=material_set, material=aluminium, name="Framing")
         ifcopenshell.api.material.add_constituent(model,
-            constituent_set=material_set, material=glass)
+            constituent_set=material_set, material=glass, name="Glazing")
 
         # Great! Let's assign our material set to our window type.
         # We're technically not done here, we might want to add geometry to
@@ -82,10 +84,8 @@ def add_constituent(
         # aluminium and glass.
         ifcopenshell.api.material.assign_material(model, products=[window_type], material=material_set)
     """
-    settings = {"constituent_set": constituent_set, "material": material}
-
-    constituents = list(settings["constituent_set"].MaterialConstituents or [])
-    constituent = file.create_entity("IfcMaterialConstituent", **{"Material": settings["material"]})
+    constituents = list(constituent_set.MaterialConstituents or [])
+    constituent = file.create_entity("IfcMaterialConstituent", Material=material, Name=name)
     constituents.append(constituent)
-    settings["constituent_set"].MaterialConstituents = constituents
+    constituent_set.MaterialConstituents = constituents
     return constituent
diff --git a/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py b/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py
index 37bdac03bc..8284d641f2 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/material/add_layer.py
@@ -17,10 +17,14 @@
 # along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
 import ifcopenshell
 import ifcopenshell.util.unit
+from typing import Optional
 
 
 def add_layer(
-    file: ifcopenshell.file, layer_set: ifcopenshell.entity_instance, material: ifcopenshell.entity_instance
+    file: ifcopenshell.file,
+    layer_set: ifcopenshell.entity_instance,
+    material: ifcopenshell.entity_instance,
+    name: Optional[str] = None,
 ) -> ifcopenshell.entity_instance:
     """Adds a new layer to a layer set
 
@@ -39,11 +43,9 @@ def add_layer(
         layer set represents a group of layers. See
         ifcopenshell.api.material.add_material_set for more information on
         how to add a layer set.
-    :type layer_set: ifcopenshell.entity_instance
     :param material: The IfcMaterial that the layer is made out of.
-    :type material: ifcopenshell.entity_instance
+    :param name: An optional name of the layer.
     :return: The newly created IfcMaterialLayer
-    :rtype: ifcopenshell.entity_instance
 
     Example:
 
@@ -82,12 +84,8 @@ def add_layer(
         ifcopenshell.api.material.assign_material(model, products=[wall_type], material=material_set)
     """
     unit_scale = ifcopenshell.util.unit.calculate_unit_scale(file)
-    settings = {"layer_set": layer_set, "material": material}
-
-    layers = list(settings["layer_set"].MaterialLayers or [])
-    layer = file.create_entity(
-        "IfcMaterialLayer", **{"Material": settings["material"], "LayerThickness": 0.1 / unit_scale}
-    )
+    layers = list(layer_set.MaterialLayers or [])
+    layer = file.create_entity("IfcMaterialLayer", Material=material, LayerThickness=0.1 / unit_scale, Name=name)
     layers.append(layer)
-    settings["layer_set"].MaterialLayers = layers
+    layer_set.MaterialLayers = layers
     return layer
diff --git a/src/ifcopenshell-python/ifcopenshell/api/material/add_profile.py b/src/ifcopenshell-python/ifcopenshell/api/material/add_profile.py
index efc345ef37..b62d5e2ef3 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/material/add_profile.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/material/add_profile.py
@@ -24,6 +24,7 @@ def add_profile(
     profile_set: ifcopenshell.entity_instance,
     material: Optional[ifcopenshell.entity_instance] = None,
     profile: Optional[ifcopenshell.entity_instance] = None,
+    name: Optional[str] = None,
 ) -> ifcopenshell.entity_instance:
     """Add a new profile item to a profile set
 
@@ -48,14 +49,12 @@ def add_profile(
         profile set represents a group of profile items. See
         ifcopenshell.api.material.add_material_set for more information on
         how to add a profile set.
-    :type profile_set: ifcopenshell.entity_instance
     :param material: The IfcMaterial that the profile item is made out of.
-    :type material: ifcopenshell.entity_instance, optional
     :param profile: The IfcProfileDef that represents the 2D cross section
         of the the profile item.
-    :type profile: ifcopenshell.entity_instance, optional
+    :param name: An optional name of the material profile (not the geometric
+        profile).
     :return: The newly created IfcMaterialProfile
-    :rtype: ifcopenshell.entity_instance
 
     Example:
 
@@ -90,14 +89,12 @@ def add_profile(
         # Great! Let's assign our material set to our beam type.
         ifcopenshell.api.material.assign_material(model, products=[beam_type], material=material_set)
     """
-    settings = {"profile_set": profile_set, "material": material, "profile": profile}
-
-    profiles = list(settings["profile_set"].MaterialProfiles or [])
-    profile = file.create_entity("IfcMaterialProfile")
-    if settings["material"]:
-        profile.Material = settings["material"]
-    if settings["profile"]:
-        profile.Profile = settings["profile"]
-    profiles.append(profile)
-    settings["profile_set"].MaterialProfiles = profiles
-    return profile
+    profiles = list(profile_set.MaterialProfiles or [])
+    mat_profile = file.create_entity("IfcMaterialProfile", Name=name)
+    if material:
+        mat_profile.Material = material
+    if profile:
+        mat_profile.Profile = profile
+    profiles.append(mat_profile)
+    profile_set.MaterialProfiles = profiles
+    return mat_profile